From 49d04d5c754223ea55636b98b6c3cd87f9697d44 Mon Sep 17 00:00:00 2001
From: Josh Duff <me@JoshDuff.com>
Date: Thu, 13 Oct 2016 09:23:29 -0500
Subject: [PATCH] Fix array clone case

The issue was noted in https://github.com/KyleAMathews/deepmerge/pull/44#issuecomment-253238515
---
 index.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/index.js b/index.js
index fec8cbd..cef611a 100644
--- a/index.js
+++ b/index.js
@@ -22,7 +22,7 @@ function emptyTarget(val) {
 
 function cloneIfNecessary(value, optionsArgument) {
     var clone = optionsArgument && optionsArgument.clone === true
-    return (clone && isMergeableObject(value)) ? deepmerge(emptyTarget(value), value) : value
+    return (clone && isMergeableObject(value)) ? deepmerge(emptyTarget(value), value, optionsArgument) : value
 }
 
 function defaultArrayMerge(target, source, optionsArgument) {
@@ -62,7 +62,7 @@ function deepmerge(target, source, optionsArgument) {
     var arrayMerge = options.arrayMerge || defaultArrayMerge
 
     if (array) {
-        return Array.isArray(target) ? arrayMerge(target, source, optionsArgument) : source.slice()
+        return Array.isArray(target) ? arrayMerge(target, source, optionsArgument) : cloneIfNecessary(source, optionsArgument)
     } else {
         return mergeObject(target, source, optionsArgument)
     }