Play fallback animation when overlay is shown.

Bug: 205086529
Test: go to -1, click to open app, swipe back
Change-Id: I905511e0ac7576d2134a10088289a5ca37d1b257
diff --git a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
index a83f51a..51d7914 100644
--- a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
+++ b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
@@ -1558,7 +1558,8 @@
 
                 View workspaceView = findWorkspaceView(appTargets);
                 boolean isWorkspaceViewVisible = workspaceView != null
-                        && !mLauncher.isInState(LauncherState.ALL_APPS);
+                        && !mLauncher.isInState(LauncherState.ALL_APPS)
+                        && !mLauncher.getWorkspace().isOverlayShown();
                 boolean playFallBackAnimation = !isWorkspaceViewVisible
                         && (launcherIsATargetWithMode(appTargets, MODE_OPENING)
                         || mLauncher.isForceInvisible());