Merge "Fix Notification group dismissing animations" into tm-qpr-dev am: 6b08882d am: 44eece0c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20291263



Change-Id: Iad27820321514f1a1b98f6e81bbef9c36e4edfb3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>