Fix scaling of workspace and hotseat with wrong pivots

Bug: 219962098
Test: Unfolded device
Change-Id: I7dd9f0579ea737cd67792e612657a043411ac70e
diff --git a/quickstep/src/com/android/quickstep/util/LauncherUnfoldAnimationController.java b/quickstep/src/com/android/quickstep/util/LauncherUnfoldAnimationController.java
index 3b58046..1ef0042 100644
--- a/quickstep/src/com/android/quickstep/util/LauncherUnfoldAnimationController.java
+++ b/quickstep/src/com/android/quickstep/util/LauncherUnfoldAnimationController.java
@@ -137,6 +137,7 @@
 
         @Override
         public void onTransitionStarted() {
+            mLauncher.getWorkspace().setPivotToScaleWithSelf(mLauncher.getHotseat());
         }
 
         @Override