Bump to v4.1.0.

_initCloneObject.js

@@ -0,0 +1,22 @@
+define(['./_baseCreate', './isFunction', './_isPrototype'], function(baseCreate, isFunction, isPrototype) {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /**
+   * Initializes an object clone.
+   *
+   * @private
+   * @param {Object} object The object to clone.
+   * @returns {Object} Returns the initialized clone.
+   */
+  function initCloneObject(object) {
+    if (isPrototype(object)) {
+      return {};
+    }
+    var Ctor = object.constructor;
+    return baseCreate(isFunction(Ctor) ? Ctor.prototype : undefined);
+  }
+
+  return initCloneObject;
+});