diff --git a/dist/lodash.compat.js b/dist/lodash.compat.js
index 219d9ccab..28c377f5a 100644
--- a/dist/lodash.compat.js
+++ b/dist/lodash.compat.js
@@ -1430,51 +1430,54 @@
 
       // recursively compare objects and arrays (susceptible to call stack limits)
       if (isArr) {
+        // compare lengths to determine if a deep comparison is necessary
         length = a.length;
         size = b.length;
+        result = size == length;
 
-        // compare lengths to determine if a deep comparison is necessary
-        result = size == a.length;
-        if (!result && !isWhere) {
-          return result;
-        }
-        // deep compare the contents, ignoring non-numeric properties
-        while (size--) {
-          var index = length,
-              value = b[size];
+        if (result || isWhere) {
+          // deep compare the contents, ignoring non-numeric properties
+          while (size--) {
+            var index = length,
+                value = b[size];
 
-          if (isWhere) {
-            while (index--) {
-              if ((result = baseIsEqual(a[index], value, callback, isWhere, stackA, stackB))) {
-                break;
+            if (isWhere) {
+              while (index--) {
+                if ((result = baseIsEqual(a[index], value, callback, isWhere, stackA, stackB))) {
+                  break;
+                }
               }
+            } else if (!(result = baseIsEqual(a[size], value, callback, isWhere, stackA, stackB))) {
+              break;
             }
-          } else if (!(result = baseIsEqual(a[size], value, callback, isWhere, stackA, stackB))) {
-            break;
           }
         }
-        return result;
       }
-      // deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
-      // which, in this case, is more costly
-      forIn(b, function(value, key, b) {
-        if (hasOwnProperty.call(b, key)) {
-          // count the number of properties.
-          size++;
-          // deep compare each property value.
-          return (result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, callback, isWhere, stackA, stackB));
-        }
-      });
-
-      if (result && !isWhere) {
-        // ensure both objects have the same number of properties
-        forIn(a, function(value, key, a) {
-          if (hasOwnProperty.call(a, key)) {
-            // `size` will be `-1` if `a` has more properties than `b`
-            return (result = --size > -1);
+      else {
+        // deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
+        // which, in this case, is more costly
+        forIn(b, function(value, key, b) {
+          if (hasOwnProperty.call(b, key)) {
+            // count the number of properties.
+            size++;
+            // deep compare each property value.
+            return (result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, callback, isWhere, stackA, stackB));
           }
         });
+
+        if (result && !isWhere) {
+          // ensure both objects have the same number of properties
+          forIn(a, function(value, key, a) {
+            if (hasOwnProperty.call(a, key)) {
+              // `size` will be `-1` if `a` has more properties than `b`
+              return (result = --size > -1);
+            }
+          });
+        }
       }
+      stackA.pop();
+      stackB.pop();
+
       if (initedStack) {
         releaseArray(stackA);
         releaseArray(stackB);
diff --git a/dist/lodash.compat.min.js b/dist/lodash.compat.min.js
index 7ec183e5e..01582f876 100644
--- a/dist/lodash.compat.min.js
+++ b/dist/lodash.compat.min.js
@@ -11,8 +11,8 @@ var l=Te[a];switch(a){case L:case z:return new l(+n);case W:case M:return new l(
 if(typeof t=="undefined"||!("prototype"in n))return n;var r=n.__bindData__;if(typeof r=="undefined"&&(Le.funcNames&&(r=!n.name),r=r||!Le.funcDecomp,!r)){var u=be.call(n);Le.funcNames||(r=!A.test(u)),r||(r=B.test(u),ze(n,r))}if(false===r||true!==r&&1&r[1])return n;switch(e){case 1:return function(e){return n.call(t,e)};case 2:return function(e,r){return n.call(t,e,r)};case 3:return function(e,r,u){return n.call(t,e,r,u)};case 4:return function(e,r,u,o){return n.call(t,e,r,u,o)}}return Mt(n,t)}function et(n){function t(){var n=l?a:this;
 if(u){var h=s(u);je.apply(h,arguments)}return(o||c)&&(h||(h=s(arguments)),o&&je.apply(h,o),c&&h.length<i)?(r|=16,et([e,p?r:-4&r,h,null,a,i])):(h||(h=arguments),f&&(e=n[g]),this instanceof t?(n=nt(e.prototype),h=e.apply(n,h),xt(h)?h:n):e.apply(n,h))}var e=n[0],r=n[1],u=n[2],o=n[3],a=n[4],i=n[5],l=1&r,f=2&r,c=4&r,p=8&r,g=e;return ze(t,n),t}function rt(e,r){var u=-1,a=ht(),i=e?e.length:0,l=i>=_&&a===n,f=[];if(l){var c=o(r);c?(a=t,r=c):l=false}for(;++u<i;)c=e[u],0>a(r,c)&&f.push(c);return l&&p(r),f}function ot(n,t,e,r){r=(r||0)-1;
 for(var u=n?n.length:0,o=[];++r<u;){var a=n[r];if(a&&typeof a=="object"&&typeof a.length=="number"&&(qe(a)||dt(a))){t||(a=ot(a,t,e));var i=-1,l=a.length,f=o.length;for(o.length+=l;++i<l;)o[f++]=a[i]}else e||o.push(a)}return o}function at(n,t,e,r,u,o){if(e){var a=e(n,t);if(typeof a!="undefined")return!!a}if(n===t)return 0!==n||1/n==1/t;if(n===n&&!(n&&X[typeof n]||t&&X[typeof t]))return false;if(null==n||null==t)return n===t;var l=he.call(n),p=he.call(t);if(l==T&&(l=G),p==T&&(p=G),l!=p)return false;switch(l){case L:case z:return+n==+t;
-case W:return n!=+n?t!=+t:0==n?1/n==1/t:n==+t;case J:case M:return n==ie(t)}if(p=l==$,!p){var s=we.call(n,"__wrapped__"),g=we.call(t,"__wrapped__");if(s||g)return at(s?n.__wrapped__:n,g?t.__wrapped__:t,e,r,u,o);if(l!=G||!Le.nodeClass&&(f(n)||f(t)))return false;if(l=!Le.argsObject&&dt(n)?oe:n.constructor,s=!Le.argsObject&&dt(t)?oe:t.constructor,l!=s&&!(jt(l)&&l instanceof l&&jt(s)&&s instanceof s)&&"constructor"in n&&"constructor"in t)return false}for(s=!u,u||(u=i()),o||(o=i()),l=u.length;l--;)if(u[l]==n)return o[l]==t;
-var h=0,a=true;if(u.push(n),o.push(t),p){if(l=n.length,h=t.length,a=h==n.length,!a&&!r)return a;for(;h--;)if(p=l,s=t[h],r)for(;p--&&!(a=at(n[p],s,e,r,u,o)););else if(!(a=at(n[h],s,e,r,u,o)))break;return a}return nr(t,function(t,i,l){return we.call(l,i)?(h++,a=we.call(n,i)&&at(n[i],t,e,r,u,o)):void 0}),a&&!r&&nr(n,function(n,t,e){return we.call(e,t)?a=-1<--h:void 0}),s&&(c(u),c(o)),a}function it(n,t,e,r,u){(qe(t)?Dt:tr)(t,function(t,o){var a,i,l=t,f=n[o];if(t&&((i=qe(t))||er(t))){for(l=r.length;l--;)if(a=r[l]==t){f=u[l];
+case W:return n!=+n?t!=+t:0==n?1/n==1/t:n==+t;case J:case M:return n==ie(t)}if(p=l==$,!p){var s=we.call(n,"__wrapped__"),g=we.call(t,"__wrapped__");if(s||g)return at(s?n.__wrapped__:n,g?t.__wrapped__:t,e,r,u,o);if(l!=G||!Le.nodeClass&&(f(n)||f(t)))return false;if(l=!Le.argsObject&&dt(n)?oe:n.constructor,s=!Le.argsObject&&dt(t)?oe:t.constructor,l!=s&&!(jt(l)&&l instanceof l&&jt(s)&&s instanceof s)&&"constructor"in n&&"constructor"in t)return false}for(l=!u,u||(u=i()),o||(o=i()),s=u.length;s--;)if(u[s]==n)return o[s]==t;
+var h=0,a=true;if(u.push(n),o.push(t),p){if(s=n.length,h=t.length,(a=h==s)||r)for(;h--;)if(p=s,g=t[h],r)for(;p--&&!(a=at(n[p],g,e,r,u,o)););else if(!(a=at(n[h],g,e,r,u,o)))break}else nr(t,function(t,i,l){return we.call(l,i)?(h++,a=we.call(n,i)&&at(n[i],t,e,r,u,o)):void 0}),a&&!r&&nr(n,function(n,t,e){return we.call(e,t)?a=-1<--h:void 0});return u.pop(),o.pop(),l&&(c(u),c(o)),a}function it(n,t,e,r,u){(qe(t)?Dt:tr)(t,function(t,o){var a,i,l=t,f=n[o];if(t&&((i=qe(t))||er(t))){for(l=r.length;l--;)if(a=r[l]==t){f=u[l];
 break}if(!a){var c;e&&(l=e(f,t),c=typeof l!="undefined")&&(f=l),c||(f=i?qe(f)?f:[]:er(f)?f:{}),r.push(t),u.push(f),c||it(f,t,e,r,u)}}else e&&(l=e(f,t),typeof l=="undefined"&&(l=t)),typeof l!="undefined"&&(f=l);n[o]=f})}function lt(n,t){return n+de(Fe()*(t-n+1))}function ft(e,r,u){var a=-1,l=ht(),f=e?e.length:0,s=[],g=!r&&f>=_&&l===n,h=u||g?i():s;for(g&&(h=o(h),l=t);++a<f;){var v=e[a],y=u?u(v,a,e):v;(r?!a||h[h.length-1]!==y:0>l(h,y))&&((u||g)&&h.push(y),s.push(v))}return g?(c(h.k),p(h)):u&&c(h),s}function ct(n){return function(t,e,r){var u={};
 if(e=v.createCallback(e,r,3),qe(t)){r=-1;for(var o=t.length;++r<o;){var a=t[r];n(u,a,e(a,r,t),t)}}else Xe(t,function(t,r,o){n(u,t,e(t,r,o),o)});return u}}function pt(n,t,e,r,u,o){var a=1&t,i=4&t,l=16&t,f=32&t;if(!(2&t||jt(n)))throw new le;l&&!e.length&&(t&=-17,l=e=false),f&&!r.length&&(t&=-33,f=r=false);var c=n&&n.__bindData__;return c&&true!==c?(c=s(c),c[2]&&(c[2]=s(c[2])),c[3]&&(c[3]=s(c[3])),!a||1&c[1]||(c[4]=u),!a&&1&c[1]&&(t|=8),!i||4&c[1]||(c[5]=o),l&&je.apply(c[2]||(c[2]=[]),e),f&&Ee.apply(c[3]||(c[3]=[]),r),c[1]|=t,pt.apply(null,c)):(1==t||17===t?w:et)([n,t,e,r,u,o])
 }function st(){Q.h=F,Q.b=Q.c=Q.g=Q.i="",Q.e="t",Q.j=true;for(var n,t=0;n=arguments[t];t++)for(var e in n)Q[e]=n[e];t=Q.a,Q.d=/^[^,]+/.exec(t)[0],n=ee,t="return function("+t+"){",e=Q;var r="var n,t="+e.d+",E="+e.e+";if(!t)return E;"+e.i+";";e.b?(r+="var u=t.length;n=-1;if("+e.b+"){",Le.unindexedChars&&(r+="if(s(t)){t=t.split('')}"),r+="while(++n<u){"+e.g+";}}else{"):Le.nonEnumArgs&&(r+="var u=t.length;n=-1;if(u&&p(t)){while(++n<u){n+='';"+e.g+";}}else{"),Le.enumPrototypes&&(r+="var G=typeof t=='function';"),Le.enumErrorProps&&(r+="var F=t===k||t instanceof Error;");
diff --git a/dist/lodash.js b/dist/lodash.js
index bcb8803dc..5b3add2a1 100644
--- a/dist/lodash.js
+++ b/dist/lodash.js
@@ -1154,51 +1154,54 @@
 
       // recursively compare objects and arrays (susceptible to call stack limits)
       if (isArr) {
+        // compare lengths to determine if a deep comparison is necessary
         length = a.length;
         size = b.length;
+        result = size == length;
 
-        // compare lengths to determine if a deep comparison is necessary
-        result = size == a.length;
-        if (!result && !isWhere) {
-          return result;
-        }
-        // deep compare the contents, ignoring non-numeric properties
-        while (size--) {
-          var index = length,
-              value = b[size];
+        if (result || isWhere) {
+          // deep compare the contents, ignoring non-numeric properties
+          while (size--) {
+            var index = length,
+                value = b[size];
 
-          if (isWhere) {
-            while (index--) {
-              if ((result = baseIsEqual(a[index], value, callback, isWhere, stackA, stackB))) {
-                break;
+            if (isWhere) {
+              while (index--) {
+                if ((result = baseIsEqual(a[index], value, callback, isWhere, stackA, stackB))) {
+                  break;
+                }
               }
+            } else if (!(result = baseIsEqual(a[size], value, callback, isWhere, stackA, stackB))) {
+              break;
             }
-          } else if (!(result = baseIsEqual(a[size], value, callback, isWhere, stackA, stackB))) {
-            break;
           }
         }
-        return result;
       }
-      // deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
-      // which, in this case, is more costly
-      forIn(b, function(value, key, b) {
-        if (hasOwnProperty.call(b, key)) {
-          // count the number of properties.
-          size++;
-          // deep compare each property value.
-          return (result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, callback, isWhere, stackA, stackB));
-        }
-      });
-
-      if (result && !isWhere) {
-        // ensure both objects have the same number of properties
-        forIn(a, function(value, key, a) {
-          if (hasOwnProperty.call(a, key)) {
-            // `size` will be `-1` if `a` has more properties than `b`
-            return (result = --size > -1);
+      else {
+        // deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
+        // which, in this case, is more costly
+        forIn(b, function(value, key, b) {
+          if (hasOwnProperty.call(b, key)) {
+            // count the number of properties.
+            size++;
+            // deep compare each property value.
+            return (result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, callback, isWhere, stackA, stackB));
           }
         });
+
+        if (result && !isWhere) {
+          // ensure both objects have the same number of properties
+          forIn(a, function(value, key, a) {
+            if (hasOwnProperty.call(a, key)) {
+              // `size` will be `-1` if `a` has more properties than `b`
+              return (result = --size > -1);
+            }
+          });
+        }
       }
+      stackA.pop();
+      stackB.pop();
+
       if (initedStack) {
         releaseArray(stackA);
         releaseArray(stackB);
diff --git a/dist/lodash.min.js b/dist/lodash.min.js
index 030c39751..5873f4e5f 100644
--- a/dist/lodash.min.js
+++ b/dist/lodash.min.js
@@ -13,8 +13,8 @@ return o}function U(n,t,e){var r,u=n,o=u;if(!u)return o;var i=arguments,a=0,f=ty
 De.funcNames||(r=!O.test(u)),r||(r=E.test(u),$e(n,r))}if(false===r||true!==r&&1&r[1])return n;switch(e){case 1:return function(e){return n.call(t,e)};case 2:return function(e,r){return n.call(t,e,r)};case 3:return function(e,r,u){return n.call(t,e,r,u)};case 4:return function(e,r,u,o){return n.call(t,e,r,u,o)}}return Mt(n,t)}function et(n){function t(){var n=f?i:this;if(u){var h=p(u);be.apply(h,arguments)}return(o||c)&&(h||(h=p(arguments)),o&&be.apply(h,o),c&&h.length<a)?(r|=16,et([e,s?r:-4&r,h,null,i,a])):(h||(h=arguments),l&&(e=n[v]),this instanceof t?(n=nt(e.prototype),h=e.apply(n,h),wt(h)?h:n):e.apply(n,h))
 }var e=n[0],r=n[1],u=n[2],o=n[3],i=n[4],a=n[5],f=1&r,l=2&r,c=4&r,s=8&r,v=e;return $e(t,n),t}function rt(e,r){var u=-1,i=st(),a=e?e.length:0,f=a>=b&&i===n,l=[];if(f){var p=o(r);p?(i=t,r=p):f=false}for(;++u<a;)p=e[u],0>i(r,p)&&l.push(p);return f&&c(r),l}function ut(n,t,e,r){r=(r||0)-1;for(var u=n?n.length:0,o=[];++r<u;){var i=n[r];if(i&&typeof i=="object"&&typeof i.length=="number"&&(Te(i)||yt(i))){t||(i=ut(i,t,e));var a=-1,f=i.length,l=o.length;for(o.length+=f;++a<f;)o[l++]=i[a]}else e||o.push(i)}return o
 }function ot(n,t,e,r,u,o){if(e){var i=e(n,t);if(typeof i!="undefined")return!!i}if(n===t)return 0!==n||1/n==1/t;if(n===n&&!(n&&V[typeof n]||t&&V[typeof t]))return false;if(null==n||null==t)return n===t;var f=ce.call(n),c=ce.call(t);if(f==D&&(f=q),c==D&&(c=q),f!=c)return false;switch(f){case T:case F:return+n==+t;case W:return n!=+n?t!=+t:0==n?1/n==1/t:n==+t;case z:case P:return n==oe(t)}if(c=f==$,!c){var p=me.call(n,"__wrapped__"),s=me.call(t,"__wrapped__");if(p||s)return ot(p?n.__wrapped__:n,s?t.__wrapped__:t,e,r,u,o);
-if(f!=q)return false;if(f=n.constructor,p=t.constructor,f!=p&&!(dt(f)&&f instanceof f&&dt(p)&&p instanceof p)&&"constructor"in n&&"constructor"in t)return false}for(p=!u,u||(u=a()),o||(o=a()),f=u.length;f--;)if(u[f]==n)return o[f]==t;var v=0,i=true;if(u.push(n),o.push(t),c){if(f=n.length,v=t.length,i=v==n.length,!i&&!r)return i;for(;v--;)if(c=f,p=t[v],r)for(;c--&&!(i=ot(n[c],p,e,r,u,o)););else if(!(i=ot(n[v],p,e,r,u,o)))break;return i}return g(t,function(t,a,f){return me.call(f,a)?(v++,i=me.call(n,a)&&ot(n[a],t,e,r,u,o)):void 0
-}),i&&!r&&g(n,function(n,t,e){return me.call(e,t)?i=-1<--v:void 0}),p&&(l(u),l(o)),i}function it(n,t,e,r,u){(Te(t)?St:h)(t,function(t,o){var i,a,f=t,l=n[o];if(t&&((a=Te(t))||Pe(t))){for(f=r.length;f--;)if(i=r[f]==t){l=u[f];break}if(!i){var c;e&&(f=e(l,t),c=typeof f!="undefined")&&(l=f),c||(l=a?Te(l)?l:[]:Pe(l)?l:{}),r.push(t),u.push(l),c||it(l,t,e,r,u)}}else e&&(f=e(l,t),typeof f=="undefined"&&(f=t)),typeof f!="undefined"&&(l=f);n[o]=l})}function at(n,t){return n+he(Re()*(t-n+1))}function ft(e,r,u){var i=-1,f=st(),p=e?e.length:0,s=[],v=!r&&p>=b&&f===n,h=u||v?a():s;
+if(f!=q)return false;if(f=n.constructor,p=t.constructor,f!=p&&!(dt(f)&&f instanceof f&&dt(p)&&p instanceof p)&&"constructor"in n&&"constructor"in t)return false}for(f=!u,u||(u=a()),o||(o=a()),p=u.length;p--;)if(u[p]==n)return o[p]==t;var v=0,i=true;if(u.push(n),o.push(t),c){if(p=n.length,v=t.length,(i=v==p)||r)for(;v--;)if(c=p,s=t[v],r)for(;c--&&!(i=ot(n[c],s,e,r,u,o)););else if(!(i=ot(n[v],s,e,r,u,o)))break}else g(t,function(t,a,f){return me.call(f,a)?(v++,i=me.call(n,a)&&ot(n[a],t,e,r,u,o)):void 0}),i&&!r&&g(n,function(n,t,e){return me.call(e,t)?i=-1<--v:void 0
+});return u.pop(),o.pop(),f&&(l(u),l(o)),i}function it(n,t,e,r,u){(Te(t)?St:h)(t,function(t,o){var i,a,f=t,l=n[o];if(t&&((a=Te(t))||Pe(t))){for(f=r.length;f--;)if(i=r[f]==t){l=u[f];break}if(!i){var c;e&&(f=e(l,t),c=typeof f!="undefined")&&(l=f),c||(l=a?Te(l)?l:[]:Pe(l)?l:{}),r.push(t),u.push(l),c||it(l,t,e,r,u)}}else e&&(f=e(l,t),typeof f=="undefined"&&(f=t)),typeof f!="undefined"&&(l=f);n[o]=l})}function at(n,t){return n+he(Re()*(t-n+1))}function ft(e,r,u){var i=-1,f=st(),p=e?e.length:0,s=[],v=!r&&p>=b&&f===n,h=u||v?a():s;
 for(v&&(h=o(h),f=t);++i<p;){var g=e[i],y=u?u(g,i,e):g;(r?!i||h[h.length-1]!==y:0>f(h,y))&&((u||v)&&h.push(y),s.push(g))}return v?(l(h.k),c(h)):u&&l(h),s}function lt(n){return function(t,e,r){var u={};e=J.createCallback(e,r,3),r=-1;var o=t?t.length:0;if(typeof o=="number")for(;++r<o;){var i=t[r];n(u,i,e(i,r,t),t)}else h(t,function(t,r,o){n(u,t,e(t,r,o),o)});return u}}function ct(n,t,e,r,u,o){var i=1&t,a=4&t,f=16&t,l=32&t;if(!(2&t||dt(n)))throw new ie;f&&!e.length&&(t&=-17,f=e=false),l&&!r.length&&(t&=-33,l=r=false);
 var c=n&&n.__bindData__;return c&&true!==c?(c=p(c),c[2]&&(c[2]=p(c[2])),c[3]&&(c[3]=p(c[3])),!i||1&c[1]||(c[4]=u),!i&&1&c[1]&&(t|=8),!a||4&c[1]||(c[5]=o),f&&be.apply(c[2]||(c[2]=[]),e),l&&we.apply(c[3]||(c[3]=[]),r),c[1]|=t,ct.apply(null,c)):(1==t||17===t?X:et)([n,t,e,r,u,o])}function pt(n){return Be[n]}function st(){var t=(t=J.indexOf)===Wt?n:t;return t}function vt(n){return typeof n=="function"&&pe.test(n)}function ht(n){var t,e;return n&&ce.call(n)==q&&(t=n.constructor,!dt(t)||t instanceof t)?(g(n,function(n,t){e=t
 }),typeof e=="undefined"||me.call(n,e)):false}function gt(n){return We[n]}function yt(n){return n&&typeof n=="object"&&typeof n.length=="number"&&ce.call(n)==D||false}function mt(n,t,e){var r=Fe(n),u=r.length;for(t=tt(t,e,3);u--&&(e=r[u],false!==t(n[e],e,n)););return n}function bt(n){var t=[];return g(n,function(n,e){dt(n)&&t.push(e)}),t.sort()}function _t(n){for(var t=-1,e=Fe(n),r=e.length,u={};++t<r;){var o=e[t];u[n[o]]=o}return u}function dt(n){return typeof n=="function"}function wt(n){return!(!n||!V[typeof n])
diff --git a/dist/lodash.underscore.js b/dist/lodash.underscore.js
index f4b52e9da..669fcacd2 100644
--- a/dist/lodash.underscore.js
+++ b/dist/lodash.underscore.js
@@ -690,22 +690,25 @@
           }
         }
       }
-      return result;
     }
-    forIn(b, function(value, key, b) {
-      if (hasOwnProperty.call(b, key)) {
-        size++;
-        return !(result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, stackA, stackB)) && indicatorObject;
-      }
-    });
-
-    if (result) {
-      forIn(a, function(value, key, a) {
-        if (hasOwnProperty.call(a, key)) {
-          return !(result = --size > -1) && indicatorObject;
+    else {
+      forIn(b, function(value, key, b) {
+        if (hasOwnProperty.call(b, key)) {
+          size++;
+          return !(result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, stackA, stackB)) && indicatorObject;
         }
       });
+
+      if (result) {
+        forIn(a, function(value, key, a) {
+          if (hasOwnProperty.call(a, key)) {
+            return !(result = --size > -1) && indicatorObject;
+          }
+        });
+      }
     }
+    stackA.pop();
+    stackB.pop();
     return result;
   }
 
diff --git a/dist/lodash.underscore.min.js b/dist/lodash.underscore.min.js
index c8b02197d..2f9c06a12 100644
--- a/dist/lodash.underscore.min.js
+++ b/dist/lodash.underscore.min.js
@@ -7,11 +7,11 @@
 }function i(n){function r(){if(u){var n=e(u);Rr.apply(n,arguments)}if(this instanceof r){var i=f(t.prototype),n=t.apply(i,n||arguments);return O(n)?n:i}return t.apply(o,n||arguments)}var t=n[0],u=n[2],o=n[4];return r}function f(n){return O(n)?Br(n):{}}function a(n,r,t){if(typeof n!="function")return Y;if(typeof r=="undefined"||!("prototype"in n))return n;switch(t){case 1:return function(t){return n.call(r,t)};case 2:return function(t,e){return n.call(r,t,e)};case 3:return function(t,e,u){return n.call(r,t,e,u)
 };case 4:return function(t,e,u,o){return n.call(r,t,e,u,o)}}return L(n,r)}function l(n){function r(){var n=p?a:this;if(o){var y=e(o);Rr.apply(y,arguments)}return(i||g)&&(y||(y=e(arguments)),i&&Rr.apply(y,i),g&&y.length<c)?(u|=16,l([t,h?u:-4&u,y,null,a,c])):(y||(y=arguments),s&&(t=n[v]),this instanceof r?(n=f(t.prototype),y=t.apply(n,y),O(y)?y:n):t.apply(n,y))}var t=n[0],u=n[1],o=n[2],i=n[3],a=n[4],c=n[5],p=1&u,s=2&u,g=4&u,h=8&u,v=t;return r}function c(n,r){for(var t=-1,e=m(),u=n?n.length:0,o=[];++t<u;){var i=n[t];
 0>e(r,i)&&o.push(i)}return o}function p(n,r,t,e){e=(e||0)-1;for(var u=n?n.length:0,o=[];++e<u;){var i=n[e];if(i&&typeof i=="object"&&typeof i.length=="number"&&(Cr(i)||b(i))){r||(i=p(i,r,t));var f=-1,a=i.length,l=o.length;for(o.length+=a;++f<a;)o[l++]=i[f]}else t||o.push(i)}return o}function s(n,r,t,e){if(n===r)return 0!==n||1/n==1/r;if(n===n&&!(n&&vr[typeof n]||r&&vr[typeof r]))return false;if(null==n||null==r)return n===r;var o=Er.call(n),i=Er.call(r);if(o!=i)return false;switch(o){case lr:case cr:return+n==+r;
-case pr:return n!=+n?r!=+r:0==n?1/n==1/r:n==+r;case gr:case hr:return n==r+""}if(i=o==ar,!i){var f=n instanceof u,a=r instanceof u;if(f||a)return s(f?n.__wrapped__:n,a?r.__wrapped__:r,t,e);if(o!=sr)return false;if(o=n.constructor,f=r.constructor,o!=f&&!(A(o)&&o instanceof o&&A(f)&&f instanceof f)&&"constructor"in n&&"constructor"in r)return false}for(t||(t=[]),e||(e=[]),o=t.length;o--;)if(t[o]==n)return e[o]==r;var l=true,c=0;if(t.push(n),e.push(r),i){if(c=r.length,l=c==n.length)for(;c--&&(l=s(n[c],r[c],t,e)););return l
-}return Kr(r,function(r,u,o){return Nr.call(o,u)?(c++,!(l=Nr.call(n,u)&&s(n[u],r,t,e))&&er):void 0}),l&&Kr(n,function(n,r,t){return Nr.call(t,r)?!(l=-1<--c)&&er:void 0}),l}function g(n,r,t){for(var e=-1,u=m(),o=n?n.length:0,i=[],f=t?[]:i;++e<o;){var a=n[e],l=t?t(a,e,n):a;(r?!e||f[f.length-1]!==l:0>u(f,l))&&(t&&f.push(l),i.push(a))}return i}function h(n){return function(r,t,e){var u={};t=X(t,e,3),e=-1;var o=r?r.length:0;if(typeof o=="number")for(;++e<o;){var i=r[e];n(u,i,t(i,e,r),r)}else Lr(r,function(r,e,o){n(u,r,t(r,e,o),o)
-});return u}}function v(n,r,t,e,u,o){var f=16&r,a=32&r;if(!(2&r||A(n)))throw new TypeError;return f&&!t.length&&(r&=-17,t=false),a&&!e.length&&(r&=-33,e=false),(1==r||17===r?i:l)([n,r,t,e,u,o])}function y(n){return Vr[n]}function m(){var r=(r=u.indexOf)===G?n:r;return r}function _(n){return typeof n=="function"&&Ar.test(n)}function d(n){return Gr[n]}function b(n){return n&&typeof n=="object"&&typeof n.length=="number"&&Er.call(n)==fr||false}function w(n){if(!n)return n;for(var r=1,t=arguments.length;r<t;r++){var e=arguments[r];
-if(e)for(var u in e)n[u]=e[u]}return n}function j(n){if(!n)return n;for(var r=1,t=arguments.length;r<t;r++){var e=arguments[r];if(e)for(var u in e)"undefined"==typeof n[u]&&(n[u]=e[u])}return n}function x(n){var r=[];return Kr(n,function(n,t){A(n)&&r.push(t)}),r.sort()}function T(n){for(var r=-1,t=Ur(n),e=t.length,u={};++r<e;){var o=t[r];u[n[o]]=o}return u}function E(n){if(!n)return true;if(Cr(n)||N(n))return!n.length;for(var r in n)if(Nr.call(n,r))return false;return true}function A(n){return typeof n=="function"
-}function O(n){return!(!n||!vr[typeof n])}function S(n){return typeof n=="number"||n&&typeof n=="object"&&Er.call(n)==pr||false}function N(n){return typeof n=="string"||n&&typeof n=="object"&&Er.call(n)==hr||false}function R(n){for(var r=-1,t=Ur(n),e=t.length,u=Array(e);++r<e;)u[r]=n[t[r]];return u}function k(n,r){var t=m(),e=n?n.length:0,u=false;return e&&typeof e=="number"?u=-1<t(n,r):Lr(n,function(n){return(u=n===r)&&er}),u}function B(n,r,t){var e=true;r=X(r,t,3),t=-1;var u=n?n.length:0;if(typeof u=="number")for(;++t<u&&(e=!!r(n[t],t,n)););else Lr(n,function(n,t,u){return!(e=!!r(n,t,u))&&er
+case pr:return n!=+n?r!=+r:0==n?1/n==1/r:n==+r;case gr:case hr:return n==r+""}if(i=o==ar,!i){var f=n instanceof u,a=r instanceof u;if(f||a)return s(f?n.__wrapped__:n,a?r.__wrapped__:r,t,e);if(o!=sr)return false;if(o=n.constructor,f=r.constructor,o!=f&&!(A(o)&&o instanceof o&&A(f)&&f instanceof f)&&"constructor"in n&&"constructor"in r)return false}for(t||(t=[]),e||(e=[]),o=t.length;o--;)if(t[o]==n)return e[o]==r;var l=true,c=0;if(t.push(n),e.push(r),i){if(c=r.length,l=c==n.length)for(;c--&&(l=s(n[c],r[c],t,e)););}else Kr(r,function(r,u,o){return Nr.call(o,u)?(c++,!(l=Nr.call(n,u)&&s(n[u],r,t,e))&&er):void 0
+}),l&&Kr(n,function(n,r,t){return Nr.call(t,r)?!(l=-1<--c)&&er:void 0});return t.pop(),e.pop(),l}function g(n,r,t){for(var e=-1,u=m(),o=n?n.length:0,i=[],f=t?[]:i;++e<o;){var a=n[e],l=t?t(a,e,n):a;(r?!e||f[f.length-1]!==l:0>u(f,l))&&(t&&f.push(l),i.push(a))}return i}function h(n){return function(r,t,e){var u={};t=X(t,e,3),e=-1;var o=r?r.length:0;if(typeof o=="number")for(;++e<o;){var i=r[e];n(u,i,t(i,e,r),r)}else Lr(r,function(r,e,o){n(u,r,t(r,e,o),o)});return u}}function v(n,r,t,e,u,o){var f=16&r,a=32&r;
+if(!(2&r||A(n)))throw new TypeError;return f&&!t.length&&(r&=-17,t=false),a&&!e.length&&(r&=-33,e=false),(1==r||17===r?i:l)([n,r,t,e,u,o])}function y(n){return Vr[n]}function m(){var r=(r=u.indexOf)===G?n:r;return r}function _(n){return typeof n=="function"&&Ar.test(n)}function d(n){return Gr[n]}function b(n){return n&&typeof n=="object"&&typeof n.length=="number"&&Er.call(n)==fr||false}function w(n){if(!n)return n;for(var r=1,t=arguments.length;r<t;r++){var e=arguments[r];if(e)for(var u in e)n[u]=e[u]}return n
+}function j(n){if(!n)return n;for(var r=1,t=arguments.length;r<t;r++){var e=arguments[r];if(e)for(var u in e)"undefined"==typeof n[u]&&(n[u]=e[u])}return n}function x(n){var r=[];return Kr(n,function(n,t){A(n)&&r.push(t)}),r.sort()}function T(n){for(var r=-1,t=Ur(n),e=t.length,u={};++r<e;){var o=t[r];u[n[o]]=o}return u}function E(n){if(!n)return true;if(Cr(n)||N(n))return!n.length;for(var r in n)if(Nr.call(n,r))return false;return true}function A(n){return typeof n=="function"}function O(n){return!(!n||!vr[typeof n])
+}function S(n){return typeof n=="number"||n&&typeof n=="object"&&Er.call(n)==pr||false}function N(n){return typeof n=="string"||n&&typeof n=="object"&&Er.call(n)==hr||false}function R(n){for(var r=-1,t=Ur(n),e=t.length,u=Array(e);++r<e;)u[r]=n[t[r]];return u}function k(n,r){var t=m(),e=n?n.length:0,u=false;return e&&typeof e=="number"?u=-1<t(n,r):Lr(n,function(n){return(u=n===r)&&er}),u}function B(n,r,t){var e=true;r=X(r,t,3),t=-1;var u=n?n.length:0;if(typeof u=="number")for(;++t<u&&(e=!!r(n[t],t,n)););else Lr(n,function(n,t,u){return!(e=!!r(n,t,u))&&er
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diff --git a/lodash.js b/lodash.js
index 4b2c0042c..f57b1db08 100644
--- a/lodash.js
+++ b/lodash.js
@@ -1446,51 +1446,54 @@
 
       // recursively compare objects and arrays (susceptible to call stack limits)
       if (isArr) {
+        // compare lengths to determine if a deep comparison is necessary
         length = a.length;
         size = b.length;
+        result = size == length;
 
-        // compare lengths to determine if a deep comparison is necessary
-        result = size == a.length;
-        if (!result && !isWhere) {
-          return result;
-        }
-        // deep compare the contents, ignoring non-numeric properties
-        while (size--) {
-          var index = length,
-              value = b[size];
+        if (result || isWhere) {
+          // deep compare the contents, ignoring non-numeric properties
+          while (size--) {
+            var index = length,
+                value = b[size];
 
-          if (isWhere) {
-            while (index--) {
-              if ((result = baseIsEqual(a[index], value, callback, isWhere, stackA, stackB))) {
-                break;
+            if (isWhere) {
+              while (index--) {
+                if ((result = baseIsEqual(a[index], value, callback, isWhere, stackA, stackB))) {
+                  break;
+                }
               }
+            } else if (!(result = baseIsEqual(a[size], value, callback, isWhere, stackA, stackB))) {
+              break;
             }
-          } else if (!(result = baseIsEqual(a[size], value, callback, isWhere, stackA, stackB))) {
-            break;
           }
         }
-        return result;
       }
-      // deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
-      // which, in this case, is more costly
-      forIn(b, function(value, key, b) {
-        if (hasOwnProperty.call(b, key)) {
-          // count the number of properties.
-          size++;
-          // deep compare each property value.
-          return (result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, callback, isWhere, stackA, stackB));
-        }
-      });
-
-      if (result && !isWhere) {
-        // ensure both objects have the same number of properties
-        forIn(a, function(value, key, a) {
-          if (hasOwnProperty.call(a, key)) {
-            // `size` will be `-1` if `a` has more properties than `b`
-            return (result = --size > -1);
+      else {
+        // deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
+        // which, in this case, is more costly
+        forIn(b, function(value, key, b) {
+          if (hasOwnProperty.call(b, key)) {
+            // count the number of properties.
+            size++;
+            // deep compare each property value.
+            return (result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, callback, isWhere, stackA, stackB));
           }
         });
+
+        if (result && !isWhere) {
+          // ensure both objects have the same number of properties
+          forIn(a, function(value, key, a) {
+            if (hasOwnProperty.call(a, key)) {
+              // `size` will be `-1` if `a` has more properties than `b`
+              return (result = --size > -1);
+            }
+          });
+        }
       }
+      stackA.pop();
+      stackB.pop();
+
       if (initedStack) {
         releaseArray(stackA);
         releaseArray(stackB);
diff --git a/test/test.js b/test/test.js
index 6fb1a73cf..f7d722665 100644
--- a/test/test.js
+++ b/test/test.js
@@ -3836,9 +3836,9 @@
 
       strictEqual(_.isEqual(array1, array2), false);
 
-      array1 = ['a','b', 'c'];
+      array1 = ['a', 'b', 'c'];
       array1[1] = array1;
-      array2 = ['a', ['b', 'b'], 'c'];
+      array2 = ['a', ['a', 'b', 'c'], 'c'];
 
       strictEqual(_.isEqual(array1, array2), false);
     });
@@ -3864,7 +3864,7 @@
 
       object1 = { 'a': 1, 'b': 2, 'c': 3 };
       object1.b = object1;
-      object2 = { 'a': 1, 'b': { 'b': 2 }, 'c': 3 };
+      object2 = { 'a': 1, 'b': { 'a': 1, 'b': 2, 'c': 3 }, 'c': 3 };
 
       strictEqual(_.isEqual(object1, object2), false);
     });
@@ -3909,17 +3909,19 @@
       strictEqual(_.isEqual(object1, object2), true);
     });
 
-    test('should return `false` when comparing values with circular references to unlike values', 2, function() {
-      var array1 = ['a', null, 'c'],
-          array2 = ['a', [], 'c'],
-          object1 = { 'a': 1, 'b': null, 'c': 3 },
-          object2 = { 'a': 1, 'b': {}, 'c': 3 };
+    test('should perform comparisons between objects with shared property values', function() {
+      var object1 = {
+        'a': [1, 2]
+      };
 
-      array1[1] = array1;
-      strictEqual(_.isEqual(array1, array2), false);
+      var object2 = {
+        'a': [1, 2],
+        'b': [1, 2]
+      };
 
-      object1.b = object1;
-      strictEqual(_.isEqual(object1, object2), false);
+      object1.b = object1.a;
+
+      strictEqual(_.isEqual(object1, object2), true);
     });
 
     test('should pass the correct `callback` arguments', 1, function() {