in 1.22, the krbV-only options krbservice and krb_rdns were dropped, and in some places leaving those options will cause a startup error. This is exactly the sort of thing that should be noted in the migration notes.
krbservice
krb_rdns
side note: this impacts kojid and kojira
Metadata Update from @julian8628: - Custom field Size adjusted to None
See also: #2422
Metadata Update from @mikem: - Issue tagged with: no_qe
Commit 3932ab89 fixes this issue
Commit c406f2a0 fixes this issue
This issue has been migrated to Fedora Forge: https://forge.fedoraproject.org/koji/koji/issues/2425
Please continue any further discussion there.