diff --git a/README.md b/README.md
index 7082d995e..0f11ca914 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# lodash-amd v4.6.0
+# lodash-amd v4.6.1
 
 The [lodash](https://lodash.com/) library exported as [AMD](https://github.com/amdjs/amdjs-api/wiki/AMD) modules.
 
@@ -27,4 +27,4 @@ require({
 });
 ```
 
-See the [package source](https://github.com/lodash/lodash/tree/4.6.0-amd) for more details.
+See the [package source](https://github.com/lodash/lodash/tree/4.6.1-amd) for more details.
diff --git a/_baseClone.js b/_baseClone.js
index 6dc2bcd58..eb6cf4936 100644
--- a/_baseClone.js
+++ b/_baseClone.js
@@ -54,13 +54,14 @@ define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_baseF
    * @private
    * @param {*} value The value to clone.
    * @param {boolean} [isDeep] Specify a deep clone.
+   * @param {boolean} [isFull] Specify a clone including symbols.
    * @param {Function} [customizer] The function to customize cloning.
    * @param {string} [key] The key of `value`.
    * @param {Object} [object] The parent object of `value`.
    * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
    * @returns {*} Returns the cloned value.
    */
-  function baseClone(value, isDeep, customizer, key, object, stack) {
+  function baseClone(value, isDeep, isFull, customizer, key, object, stack) {
     var result;
     if (customizer) {
       result = object ? customizer(value, key, object, stack) : customizer(value);
@@ -90,7 +91,8 @@ define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_baseF
         }
         result = initCloneObject(isFunc ? {} : value);
         if (!isDeep) {
-          return copySymbols(value, baseAssign(result, value));
+          result = baseAssign(result, value);
+          return isFull ? copySymbols(value, result) : result;
         }
       } else {
         if (!cloneableTags[tag]) {
@@ -109,9 +111,9 @@ define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_baseF
 
     // Recursively populate clone (susceptible to call stack limits).
     (isArr ? arrayEach : baseForOwn)(value, function(subValue, key) {
-      assignValue(result, key, baseClone(subValue, isDeep, customizer, key, value, stack));
+      assignValue(result, key, baseClone(subValue, isDeep, isFull, customizer, key, value, stack));
     });
-    return isArr ? result : copySymbols(value, result);
+    return (isFull && !isArr) ? copySymbols(value, result) : result;
   }
 
   return baseClone;
diff --git a/assign.js b/assign.js
index cdb6993b6..30b69a0ac 100644
--- a/assign.js
+++ b/assign.js
@@ -6,8 +6,11 @@ define(['./_assignValue', './_copyObject', './_createAssigner', './isArrayLike',
   /** Used to check objects for own properties. */
   var hasOwnProperty = objectProto.hasOwnProperty;
 
+  /** Built-in value references. */
+  var propertyIsEnumerable = objectProto.propertyIsEnumerable;
+
   /** Detect if properties shadowing those on `Object.prototype` are non-enumerable. */
-  var nonEnumShadows = !({ 'valueOf': 1 }).propertyIsEnumerable('valueOf');
+  var nonEnumShadows = !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf');
 
   /**
    * Assigns own enumerable properties of source objects to the destination
diff --git a/assignIn.js b/assignIn.js
index 9f214dc67..f948e03b6 100644
--- a/assignIn.js
+++ b/assignIn.js
@@ -1,7 +1,13 @@
 define(['./_assignValue', './_copyObject', './_createAssigner', './isArrayLike', './_isPrototype', './keysIn'], function(assignValue, copyObject, createAssigner, isArrayLike, isPrototype, keysIn) {
 
+  /** Used for built-in method references. */
+  var objectProto = Object.prototype;
+
+  /** Built-in value references. */
+  var propertyIsEnumerable = objectProto.propertyIsEnumerable;
+
   /** Detect if properties shadowing those on `Object.prototype` are non-enumerable. */
-  var nonEnumShadows = !({ 'valueOf': 1 }).propertyIsEnumerable('valueOf');
+  var nonEnumShadows = !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf');
 
   /**
    * This method is like `_.assign` except that it iterates over own and
diff --git a/clone.js b/clone.js
index 78657e4bf..79aa2e1a1 100644
--- a/clone.js
+++ b/clone.js
@@ -25,7 +25,7 @@ define(['./_baseClone'], function(baseClone) {
    * // => true
    */
   function clone(value) {
-    return baseClone(value);
+    return baseClone(value, false, true);
   }
 
   return clone;
diff --git a/cloneDeep.js b/cloneDeep.js
index 5ab86714e..649b9e02f 100644
--- a/cloneDeep.js
+++ b/cloneDeep.js
@@ -17,7 +17,7 @@ define(['./_baseClone'], function(baseClone) {
    * // => false
    */
   function cloneDeep(value) {
-    return baseClone(value, true);
+    return baseClone(value, true, true);
   }
 
   return cloneDeep;
diff --git a/cloneDeepWith.js b/cloneDeepWith.js
index 4fe4c7780..a1cf71056 100644
--- a/cloneDeepWith.js
+++ b/cloneDeepWith.js
@@ -27,7 +27,7 @@ define(['./_baseClone'], function(baseClone) {
    * // => 20
    */
   function cloneDeepWith(value, customizer) {
-    return baseClone(value, true, customizer);
+    return baseClone(value, true, true, customizer);
   }
 
   return cloneDeepWith;
diff --git a/cloneWith.js b/cloneWith.js
index 36af1b82a..1ebc3df4f 100644
--- a/cloneWith.js
+++ b/cloneWith.js
@@ -30,7 +30,7 @@ define(['./_baseClone'], function(baseClone) {
    * // => 0
    */
   function cloneWith(value, customizer) {
-    return baseClone(value, false, customizer);
+    return baseClone(value, false, true, customizer);
   }
 
   return cloneWith;
diff --git a/main.js b/main.js
index 274f691d5..3e9dea8d3 100644
--- a/main.js
+++ b/main.js
@@ -1,6 +1,6 @@
 /**
  * @license
- * lodash 4.6.0 (Custom Build) <https://lodash.com/>
+ * lodash 4.6.1 (Custom Build) <https://lodash.com/>
  * Build: `lodash exports="amd" -d -o ./main.js`
  * Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
  * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
@@ -13,7 +13,7 @@
   var undefined;
 
   /** Used as the semantic version number. */
-  var VERSION = '4.6.0';
+  var VERSION = '4.6.1';
 
   /** Used as the size to enable large array optimizations. */
   var LARGE_ARRAY_SIZE = 200;
@@ -1394,7 +1394,7 @@
     var metaMap = WeakMap && new WeakMap;
 
     /** Detect if properties shadowing those on `Object.prototype` are non-enumerable. */
-    var nonEnumShadows = !({ 'valueOf': 1 }).propertyIsEnumerable('valueOf');
+    var nonEnumShadows = !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf');
 
     /** Used to lookup unminified function names. */
     var realNames = {};
@@ -2328,13 +2328,14 @@
      * @private
      * @param {*} value The value to clone.
      * @param {boolean} [isDeep] Specify a deep clone.
+     * @param {boolean} [isFull] Specify a clone including symbols.
      * @param {Function} [customizer] The function to customize cloning.
      * @param {string} [key] The key of `value`.
      * @param {Object} [object] The parent object of `value`.
      * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
      * @returns {*} Returns the cloned value.
      */
-    function baseClone(value, isDeep, customizer, key, object, stack) {
+    function baseClone(value, isDeep, isFull, customizer, key, object, stack) {
       var result;
       if (customizer) {
         result = object ? customizer(value, key, object, stack) : customizer(value);
@@ -2364,7 +2365,8 @@
           }
           result = initCloneObject(isFunc ? {} : value);
           if (!isDeep) {
-            return copySymbols(value, baseAssign(result, value));
+            result = baseAssign(result, value);
+            return isFull ? copySymbols(value, result) : result;
           }
         } else {
           if (!cloneableTags[tag]) {
@@ -2383,9 +2385,9 @@
 
       // Recursively populate clone (susceptible to call stack limits).
       (isArr ? arrayEach : baseForOwn)(value, function(subValue, key) {
-        assignValue(result, key, baseClone(subValue, isDeep, customizer, key, value, stack));
+        assignValue(result, key, baseClone(subValue, isDeep, isFull, customizer, key, value, stack));
       });
-      return isArr ? result : copySymbols(value, result);
+      return (isFull && !isArr) ? copySymbols(value, result) : result;
     }
 
     /**
@@ -9467,7 +9469,7 @@
      * // => true
      */
     function clone(value) {
-      return baseClone(value);
+      return baseClone(value, false, true);
     }
 
     /**
@@ -9500,7 +9502,7 @@
      * // => 0
      */
     function cloneWith(value, customizer) {
-      return baseClone(value, false, customizer);
+      return baseClone(value, false, true, customizer);
     }
 
     /**
@@ -9520,7 +9522,7 @@
      * // => false
      */
     function cloneDeep(value) {
-      return baseClone(value, true);
+      return baseClone(value, true, true);
     }
 
     /**
@@ -9550,7 +9552,7 @@
      * // => 20
      */
     function cloneDeepWith(value, customizer) {
-      return baseClone(value, true, customizer);
+      return baseClone(value, true, true, customizer);
     }
 
     /**
diff --git a/package.json b/package.json
index c18b5485a..7f3b7ed02 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash-amd",
-  "version": "4.6.0",
+  "version": "4.6.1",
   "description": "Lodash exported as AMD modules.",
   "homepage": "https://lodash.com/custom-builds",
   "license": "MIT",