An alternate take on how to handle a player going idle with gamestate in their name: allowing that gamestate to persist, attached to their idle name. And if its continued existence causes a dynastic rule to update something which idle players don’t have, we skip that part of it (rather than invalidating the whole action).

So if somebody idles now with a Farm in the city, it will remain on the board and still be tracked in their name. If we perform a Promenade, they get no Livestock from it, as being idle they do not have a Livestock stat to update. And if they unidle later, they’ll still own that Farm - unless it was otherwise destroyed or reassigned in the meantime.

I think it’s neater if the general rule for all idlers’ gamestate is that they get it back if and when they return, unless something should happen to it in their absence. And by applying a broad solution this will hopefully cover all possible types of weird future gamestate (“board” objects owned by players, objects owned by multiple players, titles held by players, rooms that contain players, teams made up of players, etc). where the dynastic rules sometimes forget to say what should happen to them when a named player goes idle.