The error doesn't appear in my test environment. If you are able to reproduce this, please reopen this bug. verified in ovirt-engine-4.1.9-0.2.el7.noarch
This bugzilla is included in oVirt 4.1.9 release, published on Jan 24th 2018. Since the problem described in this bug report should be resolved in oVirt 4.1.9 release, published on Jan 24th 2018, it has been closed with a resolution of CURRENT RELEASE. If the solution does not work for you, please open a new bug report.