host reinstall error on 4.5.6 - runs ovn when should not (ovn_central is defined)

Affected version 4.5.6

oVirt Engine: ovirt-engine-4.5.6-1.el8.noarch
Host OS Variant: Rocky Linux 8.10
VDSM version: vdsm-4.50.5.1-1.el8.x86_64
Additional relevant package versions:

Describe the bug After upgrading to ovirt 4.5 engine+host I tried to reinstall the host via the menu and it always fails on the ansible task "Task Configure OVN for oVirt failed to execute." My hosts use classic bridges and OVN is not enabled on the cluster. The reinstall task however tries to run it.

To reproduce reinstall a host with bridge net via engine gui

Expected behavior reinstall succeeds

Screenshots the ansible task tries to run "/bin/vdsm-tool ovn-config 1.2.3.4 host.domain.com" which fails

Additional context I was able to make the re-install work by adding :

***************
*** 46,49 ****
            vdsm-tool ovn-config {{ ovn_central }} {{ ovn_tunneling_interface }} {{ ovn_host_fqdn }}

    when:
!     - ovn_central is defined and 1 == 2
--- 46,49 ----
            vdsm-tool ovn-config {{ ovn_central }} {{ ovn_tunneling_interface }} {{ ovn_host_fqdn }}

    when:
!     - ovn_central is defined

Also this issue has beed discussed on the mail list: https://www.mail-archive.com/users@ovirt.org/msg73341.html

oVirt / ovirt-engine

host reinstall error on 4.5.6 - runs ovn when should not (ovn_central is defined) #949