Ever seen a 320 like this?

I just stumbled accross this very rare (IMO anyway) ANA A-320 with only one pair of overwing exits.

http://www.jetphotos.net/viewphoto.php?id=6490279

We have all seen the occasional high capacity 319 that requires 2 pairs of exits to accomodate 156 paxs, EasyJet and Skybus come to mind. But I have never even realized Airbus offered this option. I would think it would be risky for ANA or the leasing company that owns it if that is the case for 2 reasons. If ANA wants to redeploy this aircraft from International to domestic service it's capacity would be significantly reduced from a normal domestic A-320. And I would think the resell/remarket options would be very limited for this small subfleet of aircraft. Coments welcome.

Regards

LGA777