Merge pull request facebook#1301 from markijbema/patch-1

Only stop if the transition on this element ended

Author: zpao

src/addons/transitions/ReactCSSTransitionGroupChild.js

@@ -56,7 +56,10 @@ var ReactCSSTransitionGroupChild = React.createClass({
     var activeClassName = className + '-active';
     var noEventTimeout = null;
 
-    var endListener = function() {
+    var endListener = function(e) {
+      if (e && e.target !== node) {
+        return;
+      }
       if (__DEV__) {
         clearTimeout(noEventTimeout);
       }