rbd: avoid fast-diff corruption in snapshot-based mirroring
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2212511
Signed-off-by: Ilya Dryomov idryomov@redhat.com
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2212511
Signed-off-by: Ilya Dryomov idryomov@redhat.com