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: Ifa666aff73a98ffbd55f8ffccf5df42a1ccb654d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>