$ git clone -n https://src.fedoraproject.org/rpms/openvpn.git /var/lib/mock/f41-build-838560-159711/root/chroot_tmpdir/scmroot/openvpn
Cloning into '/var/lib/mock/f41-build-838560-159711/root/chroot_tmpdir/scmroot/openvpn'...
$ git fetch origin 47575354ba744bb451f7af91ce8c0b1018f4d0d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openvpn
 * [new ref]         47575354ba744bb451f7af91ce8c0b1018f4d0d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4757535 Update to upstream OpenVPN 2.6.12