DO NOT MERGE: Reset the Node status when clone.

b/20457797

Change-Id: I5f1b0e2238fdc4a69a9c09c1e6e0272f7ede3685

core/java/android/animation/AnimatorSet.java

@@ -1082,7 +1082,8 @@ public final class AnimatorSet extends Animator {
         public Node clone() {
             try {
                 Node node = (Node) super.clone();
-                node.animation = (Animator) animation.clone();
+                node.animation = animation.clone();
+                node.done = false;
                 return node;
             } catch (CloneNotSupportedException e) {
                throw new AssertionError();