Merge "Prune summaries if only group children filtered" into tm-dev am: 4d150d5e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17453689



Change-Id: I86189ecac8dc0226c3a23ff79a9f3ac677e1ef4e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>