Probe test to produce a scenario where a parent container is stuck at sharding because of a gap in shard ranges. And the gap is caused by deleted child shard range which finishes sharding before its parent does. Co-Authored-By: Alistair Coles <alistairncoles@gmail.com> Change-Id: I73918776ed91b19ba3fd6deda2fe4ca2820f4dbf