Merge "Fix divider bar not shown when entering split with rotation transition"...

Merge "Fix divider bar not shown when entering split with rotation transition" into tm-dev am: 01eda663 am: ba4d1336

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18247768



Change-Id: I50ea19008043bec3f505e192afce8e729a53eef9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>