Merge "Check if live tile targetSet is null in launchSideTaskInLiveTileModeForRestartedApp" into sc-dev am: fa72529b05 am: cd5ebbdaf4 am: cb60682a3d

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15184810

Change-Id: I9c53e54550f3d767b88e89f618ad60e87320e5ed