https://review.opendev.org/#/c/708600/ is already downstream, proposed https://review.opendev.org/#/c/712627/ for stable/train. Hopefully, we can do without downstream backports.
Verified by inspection that fix is in OSP-16z2, compose 20200406.1, rpm - openstack-ironic-conductor-13.0.4-0.20200405204619.253253e.el8ost.noarch.
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, 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-2020:2160