Merge "Fixing the possibility of opening multiple WidgetsFullSheet" into sc-v2-dev am: 01f8b561b3 am: a7a257c8d6

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/16118178

Change-Id: I11b81420faafed3f683ff378a5ded34ebe0dc926