Last modified: 2011-10-28 02:06:40 UTC
From [[WP:VPT#No_such_special_page]]: Clicking on a Recent changes entry with the URL http://en.wikipedia.org/w/index.php?title=Sameera_Mallawarachchi&curid=33321830&action=history caused an unexpected response. The link is to an article I had just deleted. Strangely, the link shows a Wikipedia page with a title of Error, an article-like title of No such special page and content of You have requested a special page that is not recognized by Wikipedia. A list of all recognized special pages may be found at Special:Specialpages. If the &curid field is removed, it responds more sensibly showing deletion information.
The fact that it's a special page error is a separate bug (we need to implement a real Badtitle special page). The bug appears to be due to our title handling: http://svn.wikimedia.org/viewvc/mediawiki/trunk/phase3/includes/Wiki.php?view=markup#l62 Instead of calling Title::newFromURL the code that handles the &curid= activates when you have a &curid= however because the title was deleted and the page_id no longer exists Title::newFromID returns null and Badtitle is returned. I think we should change that set of code to work on the "if it's not set model". ie: Instead of elseif, each of those blocks is a `if ( is_null( $ret ) && [...] )` then if any case is active but the Title:: for that case returns null the next case will activate. In the case of a &curid=###&title= if &curid= exists it will override but if it doesn't &title= will return a title.
EXAMPLE: http://en.wikipedia.org/w/index.php?curid=1
http://en.wikipedia.org/w/index.php?title=Foo|Bar&action=history
tagging bugs for Marcus to look at
Another example (namespace with empty page part) - http://en.wikipedia.org/wiki/User:
(In reply to comment #5) > Another example (namespace with empty page part) - > http://en.wikipedia.org/wiki/User: That's a little more to do with us not having a proper Badtitle page, than with the other oldid bug.
