$ git clone -n https://src.fedoraproject.org/rpms/openvpn.git /var/lib/mock/f40-build-2238889-53588/root/chroot_tmpdir/scmroot/openvpn
Cloning into '/var/lib/mock/f40-build-2238889-53588/root/chroot_tmpdir/scmroot/openvpn'...
$ git fetch origin b5aae94468e94877c87b5215cde674bb87509ab4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openvpn
 * [new ref]         b5aae94468e94877c87b5215cde674bb87509ab4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b5aae94 Update to upstream OpenPVN 2.6.7