Hi, I opened a GitHub issue today:
FriendsOfFlarum/username-request26
This extension is wonderful and useful but, when an username change is approved, and email must inform the user that now only the new username will be valid for login.
Currently no issue if user is already logged and see the pop up alert that username change has been approved but how if they are not logged? They will get no email alert about credentials change. Change the username is a credentials change and user must be informed by email if the username change is approved.