Verified on RHOS-16.2-RHEL-8-20220427.n.3 with python3-networking-ovn-migration-tool-7.4.2-2.20220409154847.el8ost.noarch. Verified that the change exist in the migration tool playbooks code, relevant tasks executed without issues and the migration to OVN passed successfully.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Release of components for Red Hat OpenStack Platform 16.2.3 (Train)), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2022:4793