$ git clone -n https://src.fedoraproject.org/rpms/kiwi.git /var/lib/mock/f41-build-side-1-2751471-31104/root/chroot_tmpdir/scmroot/kiwi
Cloning into '/var/lib/mock/f41-build-side-1-2751471-31104/root/chroot_tmpdir/scmroot/kiwi'...
$ git fetch origin 6bfa840cb86cb60c0230575751c8b02893577ba1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kiwi
 * [new ref]         6bfa840cb86cb60c0230575751c8b02893577ba1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6bfa840 Update to 10.1.13