[1.0.2f] Certain types of corrupt savefiles will now load

This is a quick follow-up to my previous patch: https://store.steampowered.com/news/app/2013730/view/810198487112095150

In that patch, I solved an issue that arose when a gourdlet who was on a building’s guest list was deleted, but anyone who ran into that issue prior to my fix would have ended up with a corrupted savefile.

In this patch, I wrote an update that fixes those corrupted savefiles. With this patch, no action is needed by the user, and the previously corrupted savefile should just work!