Broken %pre script on new installation

[sandrobonazzola]

On a clean CentOS Stream 9 system, installing ovirt-engine from ovirt-4.5.4 shows:

Running scriptlet: ovirt-openvswitch-2.15-4.el9.noarch                                                                                                             583/635 
Failed to get unit file state for ovirt-provider-ovn.service: No such file or directory
Failed to get unit file state for ovn-controller.service: No such file or directory
Installing       : ovirt-openvswitch-2.15-4.el9.noarch                                                                                                             583/635 

which is a symptom of a broken %pre script assuming the service is already there and loaded into systemd which is not the case on a fresh installation.