$ git clone -n https://src.fedoraproject.org/rpms/x3270.git /var/lib/mock/f40-build-804715-144598/root/chroot_tmpdir/scmroot/x3270
Cloning into '/var/lib/mock/f40-build-804715-144598/root/chroot_tmpdir/scmroot/x3270'...
$ git fetch origin 05c184e05e50c6c93171c1d0edc5d65da5425edd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/x3270
 * [new ref]         05c184e05e50c6c93171c1d0edc5d65da5425edd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 05c184e - updated to 4.3ga6(#2267465)