Comment 4 for bug 1481287

It looks like this bug has been resolved by the latest code sync with upstream - the similar problem had been fixed in upstream by the following change - https://review.openstack.org/#/c/187542/. And I'm unable to reproduce the problem using latest MOS packages, so I think this bug can be marked as resolved by the following patch https://review.fuel-infra.org/#/c/10118/.