$ git clone -n https://src.fedoraproject.org/rpms/kf6-ki18n.git /var/lib/mock/f42-build-863204-171512/root/chroot_tmpdir/scmroot/kf6-ki18n
Cloning into '/var/lib/mock/f42-build-863204-171512/root/chroot_tmpdir/scmroot/kf6-ki18n'...
$ git fetch origin 1aae6d72d3a6812c1f30ded5578aa05fd39e57d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-ki18n
 * [new ref]         1aae6d72d3a6812c1f30ded5578aa05fd39e57d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1aae6d7 Frameworks 6.9