I thought it interesting that she was so ready to turn Jack in at the end, seemingly prompted by jealousy. When we see the flashback to the original Vic and Jack she appears to possibly have a crush on him. The photo, the way she's irked he's going back to say goodbye to his wife.. it's a possibility, though maybe I read all that into it. Anyway if there is residual personality left that jealousy element may have been breaking through her clean slate just like Jack's curiosity and memories were breaking through his. And when Jack questions Vic if she recognizes his wife doesn't it seem she doesn't want to admit it?
(Now I wish I could go rewatch these bits right now.)