$ git clone -n https://src.fedoraproject.org/rpms/unrealircd.git /var/lib/mock/f39-build-1558294-37303/root/chroot_tmpdir/scmroot/unrealircd
Cloning into '/var/lib/mock/f39-build-1558294-37303/root/chroot_tmpdir/scmroot/unrealircd'...
$ git fetch origin b3ca11b275d23f83f125ea79d4f4b966b2b31506:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/unrealircd
 * [new ref]         b3ca11b275d23f83f125ea79d4f4b966b2b31506 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3ca11b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild