How does one test a user identity?  I tried "pagename and user(username) for the match, and had a "no user specified" error.

> You can't test them with this directive, because such pagespecs test to
> see if logged in user, who is performing some action, matches. When the
> page with the directive is built, the concept of a user being logged in
> doesn't really apply. --[[Joey]] 
