APIView call initial method before checking the request method

[zankoAn]

I have view inheritance from APIView and I limit the request method to just accept the POST method, but In a situation where I generate the Authorization header with the wrong username/password and send it with the GET method, the view raises an exception: ‍{"detail": "Invalid username/password."} but I send it with the GET method, not POST!! why still work?

I checked the source code of APIView and see in the dispatch method first in the try/except block call the initial method and then the request method is checked, but this initial method raises an exception because the request.user was not found and this exception was ignored the request method checking and return the response {"detail": "Invalid username/password."}

Is this a bug or just me thinking it's a bug!!?