Merge "Avoid recursive destruction from exit animation done" into tm-dev am: 73dfe3e7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18753583



Change-Id: I0c3d66e1b91177cf573459953b85f3c0b2e02faa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>