$ git clone -n https://src.fedoraproject.org/rpms/cantor.git /var/lib/mock/f39-build-1570595-37771/root/chroot_tmpdir/scmroot/cantor
Cloning into '/var/lib/mock/f39-build-1570595-37771/root/chroot_tmpdir/scmroot/cantor'...
$ git fetch origin e7f04bfd50d1b4c5020513c57c27e89b85d0be94:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cantor
 * [new ref]         e7f04bfd50d1b4c5020513c57c27e89b85d0be94 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e7f04bf 23.08.2