Merge "Workaround to force show TaskFragment while back gesture animating." into udc-dev am: 6b02ff5740

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21937422

Change-Id: I2b80d2769af50057b8f1c1d842495abdd421edae
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>