Port UUID is incorrect (same as Interface UUID)

The OVSDB Southbound has leafs in the yang model for both port and interface UUID. I did a dump of the OVSDB tables using "ovsdb-client dump" and compared the output to what is returned by a GET to http://controllerIp:port/restconf/operational/network-topology:network-topology/, and realized that the port and interface UUIDs are the same:

http://pastebin.com/snsq02kg

The port UUID from the REST is the same as the Interface UUID, and the Interface UUID matches the UUID in the output of client-dump. It looks like the OSVDB Southbound is using the interface UUID for the port UUID.