Merge "Reset state after split launch animation finishes" into sc-v2-dev am: 6ab0d1e7be

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15986152

Change-Id: Iac00a062f0f3531fa1d59cb2e2ade6b17e7cb73c