The oVirt Team has just released a new version of ovirt-engine package

(4.5.1.3) that fixes an important bug:

- Bug 2066084 <https://bugzilla.redhat.com/2090670> - host upgrade 4.4.[23] to 4.5 fails on network-scripts-openvswitch2.1x conflict

The update is already available on resources.ovirt.org and should land on

oVirt mirrors within 24 hours.