Comment 3 for bug 1703013

OK, so we are saying that the problem is that the reported bug is that the Ceph driver does not set the incremental field properly.

Then it is correct, and what we need to do is to set the right values after creating the backup to overwrite whatever the API will have written, since the api could be saying it's incremental and Cinder saying it's not, and the other way around.

We need to properly set the parent_id when Ceph driver does an incremental backup and set it to None when it does a full backup (even if the API has set it to something).