maybe_add_existing_user_to_blog() dies with a page title indicating an Error on success

[Denis-de-Bernardy]

two things:

1. when you try to add yourself to an arbitrary blog by visiting /newbloguser/foo, it tells you that you've succeeded even though you haven't
2. whether or not you succeed the browser's title tells you an error occured

[wpmuguru]

Can you explain the process you followed to get the error in more detail?

[ocean90]

Open domain.com/newbloguser/foo where domain.com is you multisite install.

You should get this message:

You have been added to this blog. Please visit the homepage or login using your username and password.

and HTML title is

<title>WordPress &rsaquo; Error</title>

[wpmuguru]

(In [14226]) fix site administrator add user to site logic, see #12488