fix(ngAnimate): ignore children without animation runner when closing…

… them

During parent structural animations, ongoing animations on child elements
are closed. These children are looked up by checking the data-ng-animate
attribute. If an element is the clone of an animating element,
it might have this attribute, but no animation runner associated with it,
so we need to ignore it.

Fixes #11992
Closes #13424

src/ngAnimate/animateQueue.js

@@ -507,15 +507,15 @@ var $$AnimateQueueProvider = ['$animateProvider', function($animateProvider) {
       forEach(children, function(child) {
         var state = parseInt(child.getAttribute(NG_ANIMATE_ATTR_NAME));
         var animationDetails = activeAnimationsLookup.get(child);
-        switch (state) {
-          case RUNNING_STATE:
-            animationDetails.runner.end();
-            /* falls through */
-          case PRE_DIGEST_STATE:
-            if (animationDetails) {
+        if (animationDetails) {
+          switch (state) {
+            case RUNNING_STATE:
+              animationDetails.runner.end();
+              /* falls through */
+            case PRE_DIGEST_STATE:
               activeAnimationsLookup.remove(child);
+              break;
             }
-            break;
         }
       });
     }

test/ngAnimate/animateSpec.js

@@ -850,6 +850,26 @@ describe("animations", function() {
         expect(isCancelled).toBe(true);
       }));
 
+      it('should ignore an apparently ongoing post-digest child animation that has no animation data',
+        inject(function($rootScope, $rootElement, $animate) {
+
+        parent.append(element);
+
+        $animate.addClass(element, 'rumlow');
+
+        $rootScope.$digest();
+        expect(capturedAnimation[0]).toBe(element);
+
+        // If an element is cloned during an animation, it still has the data-attributes indicating
+        // an animation
+        var clone = element.clone();
+        parent.append(clone);
+
+        $animate.move(parent, null, parent2);
+        $rootScope.$digest();
+        expect(capturedAnimation[0]).toBe(parent);
+      }));
+
       it('should not end any child animations if a parent class-based animation is issued',
         inject(function($rootScope, $rootElement, $animate) {