Applies to clients (lunar) as well as the IAS mod. Previous discussion mentioned just integrating switching handling into the manager, instead of a feature. Perhaps to maintain the functionality of users using one config for another account, some button can be added to temporarily swap in the config book?
On hold until mixins allow us to "watch" variables, so we can watch updates to the User object. Originally at #2623

Would it be possible to reload the config every time the user connects to a server? That way no matter how an account switcher actually swaps the account we can still access the proper user.