$ git clone -n https://src.fedoraproject.org/rpms/unison.git /var/lib/mock/f41-build-821284-152509/root/chroot_tmpdir/scmroot/unison
Cloning into '/var/lib/mock/f41-build-821284-152509/root/chroot_tmpdir/scmroot/unison'...
$ git fetch origin 21c8e5c18097c6847e15a0719aefe6710811e498:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/unison
 * [new ref]         21c8e5c18097c6847e15a0719aefe6710811e498 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21c8e5c Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild