From 1b3815928d5ada407e9ba6ec20ed4bb3af685e22 Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Fri, 4 Nov 2016 01:10:54 -0700
Subject: [PATCH] Ensure `fp.mergeAllWith` accepts more than 2 sources. [closes
 #2786]

---
 fp/_mapping.js | 12 ++++++------
 lodash.js      |  1 +
 test/test.js   |  4 ++--
 3 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/fp/_mapping.js b/fp/_mapping.js
index 7fa8e672e..cbbcd99df 100644
--- a/fp/_mapping.js
+++ b/fp/_mapping.js
@@ -172,9 +172,9 @@ exports.iterateeRearg = {
 
 /** Used to map method names to rearg configs. */
 exports.methodRearg = {
-  'assignInAllWith': [1, 2, 0],
+  'assignInAllWith': [1, 0],
   'assignInWith': [1, 2, 0],
-  'assignAllWith': [1, 2, 0],
+  'assignAllWith': [1, 0],
   'assignWith': [1, 2, 0],
   'differenceBy': [1, 2, 0],
   'differenceWith': [1, 2, 0],
@@ -183,7 +183,7 @@ exports.methodRearg = {
   'intersectionWith': [1, 2, 0],
   'isEqualWith': [1, 2, 0],
   'isMatchWith': [2, 1, 0],
-  'mergeAllWith': [1, 2, 0],
+  'mergeAllWith': [1, 0],
   'mergeWith': [1, 2, 0],
   'padChars': [2, 1, 0],
   'padCharsEnd': [2, 1, 0],
@@ -206,15 +206,15 @@ exports.methodRearg = {
 /** Used to map method names to spread configs. */
 exports.methodSpread = {
   'assignAll': { 'start': 0 },
-  'assignAllWith': { 'afterRearg': true, 'start': 1 },
+  'assignAllWith': { 'start': 0 },
   'assignInAll': { 'start': 0 },
-  'assignInAllWith': { 'afterRearg': true, 'start': 1 },
+  'assignInAllWith': { 'start': 0 },
   'defaultsAll': { 'start': 0 },
   'defaultsDeepAll': { 'start': 0 },
   'invokeArgs': { 'start': 2 },
   'invokeArgsMap': { 'start': 2 },
   'mergeAll': { 'start': 0 },
-  'mergeAllWith': { 'afterRearg': true, 'start': 1 },
+  'mergeAllWith': { 'start': 0 },
   'partial': { 'start': 1 },
   'partialRight': { 'start': 1 },
   'without': { 'start': 1 },
diff --git a/lodash.js b/lodash.js
index 72f744fba..3e150d3fa 100644
--- a/lodash.js
+++ b/lodash.js
@@ -10822,6 +10822,7 @@
         if (array) {
           arrayPush(otherArgs, array);
         }
+        arrayPush(otherArgs, castSlice(args, start + 1));
         return apply(func, this, otherArgs);
       });
     }
diff --git a/test/test.js b/test/test.js
index 417262fe3..621656000 100644
--- a/test/test.js
+++ b/test/test.js
@@ -20866,8 +20866,8 @@
         args = slice.call(arguments);
       });
 
-      spread([4, 2], 'ignored');
-      assert.deepEqual(args, [4, 2]);
+      spread([1, 2], 3);
+      assert.deepEqual(args, [1, 2, 3]);
     });
 
     QUnit.test('should work with `start`', function(assert) {