They do in fact cache some things like that, they've had caching issues in the past (and again recently, I think) with the wrong cache being used in some situat

They do in fact cache some things like that, they've had caching issues in the past (and again recently, I think) with the wrong cache being used in some situations: https://meta.stackexchange.com/a/235277 https://meta.stackexchange.com/a/235277