The only problem i’m seeing in my code is in case of a field group update, as the “cached” fields are already formatted and if you change return format specs you should update all pages showing those exact fields. I cannot think to hook on save_post for doing this check, as if you have a milion of pages you should first search every page that respects location rules, and then update the fields… maybe it’s better to create a tool which can update all database leaving the user when to use it…
