After upgrading rpkg from https://bodhi.fedoraproject.org/updates/FEDORA-2022-8c1cd50d13 centpkg
works. This should probably be added to the fedpkg+rpkg update.
This change is might be the problem: https://git.centos.org/centos/centpkg/c/9fb9aa563ce9cb5eb75b2ec0d2fb933c24ff3de2 because latest rpkg 1.65 is not yet available for F36
All commands fail with error: Macro %_sourcedir has empty body
$ centpkg prep
Not downloading already downloaded blivet-3.4.0-tests.tar.gz
Not downloading already downloaded blivet-3.4.0.tar.gz
error: Macro %_sourcedir has empty body
Could not execute prep: Failed to execute command.
(works correctly after downgrading back to 0.6.6-4.fc36)