Bump to v4.3.1.

lodash.setwith/README.md

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

lodash.setwith/index.js

@@ -25,7 +25,8 @@ var funcTag = '[object Function]',
 /** Used to match property names within property paths. */
 var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
     reIsPlainProp = /^\w*$/,
-    rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(\.|\[\])(?:\4|$))/g;
+    reLeadingDot = /^\./,
+    rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;
 
 /**
  * Used to match `RegExp`
@@ -648,8 +649,13 @@ function isMasked(func) {
  * @returns {Array} Returns the property path array.
  */
 var stringToPath = memoize(function(string) {
+  string = toString(string);
+
   var result = [];
-  toString(string).replace(rePropName, function(match, number, quote, string) {
+  if (reLeadingDot.test(string)) {
+    result.push('');
+  }
+  string.replace(rePropName, function(match, number, quote, string) {
     result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));
   });
   return result;

lodash.setwith/package.json

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