Merge "Check if live tile targetSet is null in launchSideTaskInLiveTileModeForRestartedApp" into sc-dev am: fa72529b05 am: f3e9774ca6

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

Change-Id: I32da1bf258c69d9c694465428e37ffbd110950f5