Second room of Gym Rematch House contains all Leaders, even when not invited

[Thirteen1355]

When inviting a Gym Leader and entering the second room, all Gym Leaders are shown inside. I invited Brock, and all Leaders are here even though not invited.

[Deokishisu]

Thank you. This is a result of switching to the modern compiler combined with the stupid way I implemented the trainer house data storage (across two vars instead of as a struct in the SaveBlock like it should've been). In the next version this will be handled differently.