$ git clone -n https://src.fedoraproject.org/rpms/kf6-syntax-highlighting.git /var/lib/mock/f42-build-3352139-45014/root/chroot_tmpdir/scmroot/kf6-syntax-highlighting
Cloning into '/var/lib/mock/f42-build-3352139-45014/root/chroot_tmpdir/scmroot/kf6-syntax-highlighting'...
$ git fetch origin 78a888b0c0c608fd1220507366854a7eec3ce7aa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-syntax-highlighting
 * [new ref]         78a888b0c0c608fd1220507366854a7eec3ce7aa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78a888b 6.12.0