Merge "Check if live tile targetSet is null in launchSideTaskInLiveTileModeForRestartedApp" into sc-dev am: fa72529b05 am: 6ffacb09a9

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

Change-Id: Ia6be7ba248c4a40a997c44f9eefe0a93f6c65a42