From c6709faf526f03cc56eb2d7640dfbb6d91795ea8 Mon Sep 17 00:00:00 2001
From: Thodoris Greasidis <thgreasi@gmail.com>
Date: Tue, 12 Aug 2014 23:34:08 +0300
Subject: [PATCH] fix(sortable): clear savedNodes to fix a leak for items that
 get removed

---
 src/sortable.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/sortable.js b/src/sortable.js
index d293eb8..a18f046 100644
--- a/src/sortable.js
+++ b/src/sortable.js
@@ -140,6 +140,14 @@ angular.module('ui.sortable', [])
               }
               savedNodes.appendTo(element);
 
+              // If this is the target connected list then
+              // it's safe to clear the restored nodes since:
+              // update is currently running and
+              // stop is not called for the target list.
+              if(ui.item.sortable.received) {
+                savedNodes = null;
+              }
+
               // If received is true (an item was dropped in from another list)
               // then we add the new item to this list otherwise wait until the
               // stop event where we will know if it was a sort or item was
@@ -173,6 +181,10 @@ angular.module('ui.sortable', [])
                   savedNodes.appendTo(element);
                 }
               }
+
+              // It's now safe to clear the savedNodes
+              // since stop is the last callback.
+              savedNodes = null;
             };
 
             callbacks.receive = function(e, ui) {