v2 - on security group update, need to pass all the security group details - failing security group update in netvirt CSIT

When a security-group attribute is updated, in this case the SG name, networking-odl_v1 used to pass the entire structure.
In v2, it seems the update is sent with only the new data, without any uuid etc. - this causes a neutron northbound failure and this test case in netvirt CSIT fails [1], when trying to verify the update in MDSAL.

The previous behavior in v1 can be viewed here [2], original q-svc log [3].

In v2, the following data is sent [4], original q-svc [5], and karaf log [6] outputs these errors:
2016-12-27 02:48:34,031 | WARN | qtp863596267-903 | NeutronSecurityGroupInterface | 244 - org.opendaylight.neutron.transcriber - 0.7.3.SNAPSHOT | Attempting to write neutron securityGroup without UUID
2016-12-27 02:48:34,032 | ERROR | qtp863596267-903 | ContainerResponse | 70 - com.sun.jersey.jersey-server - 1.17.0 | The RuntimeException could not be mapped to a response, re-throwing to the HTTP container
java.lang.IllegalArgumentException: All keys must be specified for class org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.secgroups.rev150712.security.groups.attributes.security.groups.SecurityGroupKey. Missing key is getUuid. Supplied key is SecurityGroupKey []
 at com.google.common.base.Preconditions.checkArgument(Preconditions.java:145)
 at org.opendaylight.yangtools.binding.data.codec.impl.ValueContext.getAndSerialize(ValueContext.java:43)
 at org.opendaylight.yangtools.binding.data.codec.impl.IdentifiableItemCodec.serialize(IdentifiableItemCodec.java:122)

[1] https://logs.opendaylight.org/releng/jenkins092/netvirt-csit-1node-openstack-newton-nodl-v2-upstream-learn-boron/46/archives/log.html.gz#s1-s1-s1-t1-k15
[2] http://paste.openstack.org/show/593478/
[3] https://logs.opendaylight.org/releng/jenkins092/netvirt-csit-1node-openstack-newton-upstream-learn-boron/49/archives/control/q-svc.log.2016-12-26-154413.gz
[4] http://paste.openstack.org/show/593480/
[5] https://logs.opendaylight.org/releng/jenkins092/netvirt-csit-1node-openstack-newton-nodl-v2-upstream-learn-boron/46/archives/control/q-svc.log.2016-12-27-021300.gz
[6] https://logs.opendaylight.org/releng/jenkins092/netvirt-csit-1node-openstack-newton-nodl-v2-upstream-learn-boron/46/archives/odl1_karaf.log.gz