$ git clone -n https://src.fedoraproject.org/rpms/kf6-kitemmodels.git /var/lib/mock/f42-build-side-1-3508080-46013/root/chroot_tmpdir/scmroot/kf6-kitemmodels
Cloning into '/var/lib/mock/f42-build-side-1-3508080-46013/root/chroot_tmpdir/scmroot/kf6-kitemmodels'...
$ git fetch origin c3c1c31efa98bdb9065bb1a04d66fe8d4bfb1283:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kitemmodels
 * [new ref]         c3c1c31efa98bdb9065bb1a04d66fe8d4bfb1283 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c3c1c31 6.13.0