$ git clone -n https://src.fedoraproject.org/rpms/kf6-kcontacts.git /var/lib/mock/f41-build-860153-168834/root/chroot_tmpdir/scmroot/kf6-kcontacts
Cloning into '/var/lib/mock/f41-build-860153-168834/root/chroot_tmpdir/scmroot/kf6-kcontacts'...
$ git fetch origin adf1348c269cb34d99c39376939a2f8fe65f9fd6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kcontacts
 * [new ref]         adf1348c269cb34d99c39376939a2f8fe65f9fd6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at adf1348 6.7.0