From d030816f81d3f0f6365f4b8a63d37865fdebcdea Mon Sep 17 00:00:00 2001
From: Dan Abramov <dan.abramov@gmail.com>
Date: Thu, 26 May 2016 21:14:50 +0100
Subject: [PATCH] Merge pull request #6886 from Weizenlol/patch-1

Added own property check when deleting listeners.
(cherry picked from commit ca5a0dad169de8a19f8df6097ea9bc1bb0924a3c)
---
 src/renderers/shared/stack/event/EventPluginHub.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/renderers/shared/stack/event/EventPluginHub.js b/src/renderers/shared/stack/event/EventPluginHub.js
index 270d1665d8e4f..2bbdef1f7054e 100644
--- a/src/renderers/shared/stack/event/EventPluginHub.js
+++ b/src/renderers/shared/stack/event/EventPluginHub.js
@@ -157,6 +157,10 @@ var EventPluginHub = {
    */
   deleteAllListeners: function(inst) {
     for (var registrationName in listenerBank) {
+      if (!listenerBank.hasOwnProperty(registrationName)) {
+        continue;
+      }
+      
       if (!listenerBank[registrationName][inst._rootNodeID]) {
         continue;
       }