We were feeling investigative-reportery when we spotted the brown paper in the windows at 645 Vanderbilt on Friday and, upon closer inspection, noticed the small print along the bottom of the window not exactly trumpeting the imminent arrival of the Olde Brooklyn Bagel Shop. Then, over the weekend, a tipster sent in a photo of the banner actually trumpeting the imminent arrival of what they’re now calling Prospect Bagels. Good news for P-Heights? GMAP