Merge "Don't preemptively release task leashes w/ transitions" into tm-qpr-dev am: f9257ef01b am: dadeca2554

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19262308

Change-Id: Id7b4e37b83a035023f4deeb5ac61098e825dc8d7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>