Merge "Fix NPE when TaskView isn't attached to RecentsView" into sc-v2-dev am: 00841576d4 am: e984618610

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/16143390

Change-Id: I90e5f55362bf4e404f7919792cb5ac0a5ea158d3