Creating a VN without a name fails

Build : 1.06-50

Creating a VN without a name fails saying that default-virtual-network already exists.
This passes in stock neutron.

As per neutron spec, VN can be created without a name.

curl -i http://10.204.217.109:9696/v2.0/networks.json -X POST -H "X-Auth-Token: <token>" -H "Content-Type: application/json" -H "Accept: application/json" -H "User-Agent: python-neutronclient" -d '{"network": {"shared":true}}'
HTTP/1.1 400 Bad Request
Content-Type: application/json; charset=UTF-8
Content-Length: 210
Date: Tue, 24 Jun 2014 18:51:08 GMT

{"NeutronError": {"message": "Bad network request: [u'default-domain', u'admin', u'default-virtual-network'] already exists with uuid: 15f74522-254f-459d-854d-327803e9bd9e", "type": "BadRequest", "detail": ""}}root@nodec22:~#
root@nodec22:~#