Merge "Cleans up bad state when transient taskbar shows on home." into udc-dev am: 2c3c1e46

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23852178



Change-Id: I68510c624c597e572dd4e06b0e36c6d994c60ce1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>