$ git clone -n https://src.fedoraproject.org/rpms/kf6-kdesu.git /var/lib/mock/f41-build-849298-164840/root/chroot_tmpdir/scmroot/kf6-kdesu
Cloning into '/var/lib/mock/f41-build-849298-164840/root/chroot_tmpdir/scmroot/kf6-kdesu'...
$ git fetch origin b14f5500981715249c9de1ef2190a3b2cf6440bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kdesu
 * [new ref]         b14f5500981715249c9de1ef2190a3b2cf6440bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b14f550 6.6.0