Merge "Fix quick switch in between two split pairs crash" into tm-qpr-dev am: 750009fa

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21460191



Change-Id: I5ee197302979a7ee12198d783a6ab703fe9acde1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>