Merge "New pipeline: Separate stability rules for group pruning from group...

Merge "New pipeline: Separate stability rules for group pruning from group changing" into tm-dev am: baafc8b1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18030065



Change-Id: I942bdf59fbbacd172f7e207bdc43aaee54b03a29
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>