We’d just been wondering about this empty storefront at the corner of Lafayette and Cumberland in Fort Greene when we got an email from somebody in the neighborhood who’d been doing some nosing around. Having heard rumors that this was going to be a Thai restaurant, he tried asking the owner, only to be rebuffed. Could it be that everything’s not being done on the up-and-up with the Landmarks Preservation Commission? Are those new doorways being cut through the wall? Can anyone confirm the Thai rumor? GMAP