$ git clone -n https://src.fedoraproject.org/rpms/bacula-docs.git /var/lib/mock/f39-build-1856368-42424/root/chroot_tmpdir/scmroot/bacula-docs
Cloning into '/var/lib/mock/f39-build-1856368-42424/root/chroot_tmpdir/scmroot/bacula-docs'...
$ git fetch origin be1b739dad5122bf6826f6ad7442ff0e2511215d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bacula-docs
 * [new ref]         be1b739dad5122bf6826f6ad7442ff0e2511215d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be1b739 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild