Last modified: 2010-05-15 15:42:50 UTC
Before showing a page, mediaWiki calls the function 'userCan' of title.php several times
in order to get the user's rights.
The first one of these calls has an empty $user parameter.
Unfortunately I don't know how to determine where this first call comes from.
Greetings from Germany
P.S. Due to the side effects I've the impression that the mentioned call is in relation to
the "source code" tab.
Title::userCan doesn't have a $user parameter.
Incomplete intialization of the $user object by an external script.
=> Not a MediaWiki issue.