$ git clone -n https://src.fedoraproject.org/rpms/openvswitch.git /var/lib/mock/f41-build-846603-163134/root/chroot_tmpdir/scmroot/openvswitch
Cloning into '/var/lib/mock/f41-build-846603-163134/root/chroot_tmpdir/scmroot/openvswitch'...
$ git fetch origin a924494e3d3828ecebb088be50836aa20f3dffe1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openvswitch
 * [new ref]         a924494e3d3828ecebb088be50836aa20f3dffe1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a924494 Update to 3.4.0