Merge "Fix bug where workspace alpha does not get set to 1 when animation gets cancelled." into sc-dev am: f9df8f3682 am: 5e7b499dc7 am: b1cfdbb1aa

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15023032

Change-Id: Ic00635479b7fbb9a85279319440ef613cf3711b6