One of my networks (the one I normally use) uses wpa2-enterprise (where there is a username and password). Many university networks use this too...
When I select that one, I only get prompted for a password, so it is apparently identifying the network as PSK. All of my phone, ubuntu, and even windows get this right, so it must be possible. This doesn't really get in my way, but it would be nice to fix. For reference, this happens in both stable and latest. At least latest does indeed fix the duplicate mac (which wouldn't usually hurt but that depends on the "house" router config.)

-- Pete