Merge "Prevent focusing next task if focused task part of split select" into sc-v2-dev am: 5f412199ad am: 0ada7824c1

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15854777

Change-Id: I5fd527ce8f4d20a4c915fc6a15e6f1ee00d5d8e6