$ git clone -n https://src.fedoraproject.org/rpms/openvswitch.git /var/lib/mock/f40-build-2511353-61710/root/chroot_tmpdir/scmroot/openvswitch
Cloning into '/var/lib/mock/f40-build-2511353-61710/root/chroot_tmpdir/scmroot/openvswitch'...
$ git fetch origin 49fe08bfe25e0e481c95faa3fed86886f9d94a23:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openvswitch
 * [new ref]         49fe08bfe25e0e481c95faa3fed86886f9d94a23 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 49fe08b Update to 3.3.0