$ git clone -n https://src.fedoraproject.org/rpms/python-stem.git /var/lib/mock/f40-build-2135988-50815/root/chroot_tmpdir/scmroot/python-stem
Cloning into '/var/lib/mock/f40-build-2135988-50815/root/chroot_tmpdir/scmroot/python-stem'...
$ git fetch origin d6c9371b6c72cce75032dadfd697b3640c8d6f29:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-stem
 * [new ref]         d6c9371b6c72cce75032dadfd697b3640c8d6f29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6c9371 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild