Stop computing scroll if handler is invalidated

Bug: 153589287
Change-Id: I0282ec82fe4ae1f74a0f4342471ffd53f43095d7
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
index 5a64382..6598971 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
@@ -1076,7 +1076,8 @@
     }
 
     private void continueComputingRecentsScrollIfNecessary() {
-        if (!mGestureState.hasState(STATE_RECENTS_SCROLLING_FINISHED)) {
+        if (!mGestureState.hasState(STATE_RECENTS_SCROLLING_FINISHED)
+                && !mStateCallback.hasStates(STATE_HANDLER_INVALIDATED)) {
             computeRecentsScrollIfInvisible();
             mRecentsView.post(this::continueComputingRecentsScrollIfNecessary);
         }