$ git clone -n https://src.fedoraproject.org/rpms/kf6-ki18n.git /var/lib/mock/f42-build-side-1-3506309-45996/root/chroot_tmpdir/scmroot/kf6-ki18n
Cloning into '/var/lib/mock/f42-build-side-1-3506309-45996/root/chroot_tmpdir/scmroot/kf6-ki18n'...
$ git fetch origin 979564885e405c67891876e5d1da07ad6c07f8b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-ki18n
 * [new ref]         979564885e405c67891876e5d1da07ad6c07f8b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9795648 6.13.0