From 16105067bf7f8e39e3f789f9a39faed6dfe86e2f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ju=CC=88rg=20Lehni?= <juerg@scratchdisk.com>
Date: Sun, 28 Dec 2014 18:29:20 +0100
Subject: [PATCH] Correctly handle Item#insertChild(null)

---
 src/item/Item.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/item/Item.js b/src/item/Item.js
index 6387b1d0..9532eac3 100644
--- a/src/item/Item.js
+++ b/src/item/Item.js
@@ -2106,7 +2106,7 @@ var Item = Base.extend(Emitter, /** @lends Item# */{
      * possible.
      */
     insertChild: function(index, item, _preserve) {
-        var res = this.insertChildren(index, [item], _preserve);
+        var res = item ? this.insertChildren(index, [item], _preserve) : null;
         return res && res[0];
     },