Bump to v4.3.1.

lodash.mergewith/README.md

@@ -1,4 +1,4 @@
-# lodash.mergewith v4.3.0
+# lodash.mergewith v4.3.1
 
 The [lodash](https://lodash.com/) method `_.mergeWith` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -15,4 +15,4 @@ In Node.js:
 var mergeWith = require('lodash.mergewith');
 ```
 
-See the [documentation](https://lodash.com/docs#mergeWith) or [package source](https://github.com/lodash/lodash/blob/4.3.0-npm-packages/lodash.mergewith) for more details.
+See the [documentation](https://lodash.com/docs#mergeWith) or [package source](https://github.com/lodash/lodash/blob/4.3.1-npm-packages/lodash.mergewith) for more details.

lodash.mergewith/index.js

@@ -1,5 +1,5 @@
 /**
- * lodash 4.3.0 (Custom Build) <https://lodash.com/>
+ * lodash 4.3.1 (Custom Build) <https://lodash.com/>
  * Build: `lodash modularize exports="npm" -o ./`
  * Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
  * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
@@ -137,8 +137,7 @@ function assignMergeValue(object, key, value) {
  */
 function assignValue(object, key, value) {
   var objValue = object[key];
-  if ((!eq(objValue, value) ||
-        (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) ||
+  if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
       (value === undefined && !(key in object))) {
     object[key] = value;
   }

lodash.mergewith/package.json

@@ -1,6 +1,6 @@
 {
   "name": "lodash.mergewith",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "description": "The lodash method `_.mergeWith` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",