Author: phil
Description:
When visiting a private wiki, users are shown the message
'You must log in to view other pages'.
Because of the recent changes in 1.17.1 that hide page titles from users who don't have permission to see them, the log in link now has a returnto of Special:BadTitle.
The net result is that when a legitimate user logs in, they are taken to the Badtitle error page, rather than to the Mainpage.
Version: 1.17.x
Severity: major