Comment 2 for bug 1730834

This is expected with the current code. See the release note: https://github.com/openstack/nova/blob/master/releasenotes/notes/ironic-driver-hash-ring-7d763d87b9236e5d.yaml#L10-L16

We should make this better, I agree, so we should leave this bug open. But, it's low priority and probably needs a blueprint when we do it.