$ git clone -n https://src.fedoraproject.org/rpms/cantor.git /var/lib/mock/f38-build-716131-95855/root/chroot_tmpdir/scmroot/cantor
Cloning into '/var/lib/mock/f38-build-716131-95855/root/chroot_tmpdir/scmroot/cantor'...
$ git fetch origin bb7638313d66890029bdd08c09cd5bf73ade20c7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cantor
 * [new ref]         bb7638313d66890029bdd08c09cd5bf73ade20c7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb76383 23.04.1