Shouldn't it be placed in the user/AppData/Roaming/Renpy/ folder?
well when I delete the oldversion of a game to try the new version I tend delete everything but the save folder in game/saves.
and I don't touch C:\Users\AppData\Roaming\RenPy\OldFriendsandPublicTransport? at all.
As I'm not sure exactly sure how C:\Users\AppData\Roaming\RenPy\OldFriendsandPublicTransport? truely works.
If its an actual copy or just information that tells the game you have a save's in them slots in the folder in game/saves.
but might be better or safer with a downloaded save file to put copy's it in both place's unless someone knows better.
But the main point I was aiming for is in either case those locations have .save files and not .zip