I suspect this bug being caused by https://bugs.launchpad.net/tripleo/+bug/1729382
Blocked by https://bugzilla.redhat.com/show_bug.cgi?id=1507868 (or possibly caused by the same bug)
This is fixed in upstream master. It's likely caused by the same thing as the linked bug. Fixed here: https://review.openstack.org/#/c/517024/
This bug is fixed by patch for https://bugzilla.redhat.com/show_bug.cgi?id=1507868 - closing as duplicate bug. *** This bug has been marked as a duplicate of bug 1507868 ***