Merge "Fix bug where unstash animation plays twice." into udc-dev am: ba4fcb01

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23153653



Change-Id: I3482a796afd3d854ce4f429e0aa1243232b5592f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>