Updated openstack/openstack
Project: openstack/cinder  bbe2ab28ae8e94ead3fafe6fab048aad260ad856
null
Check if snapshot is deleted cleanly.

This patch added a check in delete_snapshot to make sure the
snapshot is deleted cleanly.  Without this check, if someone
tries to delete the source volume immediately after the snapshot
deletion, it will fail with error that the volume still has
snapshot.

Closes-Bug: #1286699

Change-Id: Idf4508025b403fa572584e5204b3891375fed6c6