It's probably not her in the trut sense. Unless the producers had some concealed means of backing up her memory as it was in the theater, which I'll admit Felicia had no incentive to disclose, but that seems impossible. Even the laptop with the week four backup wouldn't be available. At any rate the guests' collective mumbling about not remembering how they got there suggests they recycled the amnesia conceit. A fresh copy would probably be the easiest for them.