API talk:Allcategories

it's the parameter "apnamespace" that has to be set when requesting list=allpages.

WTF?
http://en.wikipedia.org/w/api.php?action=query&list=allcategories&acprefix=List_of first result is w:en:category:List of. Page for this category dont exist, and category have a zero member. WTF? 109.184.101.203 07:43, 10 September 2014 (UTC)
 * +1 --Ilya (talk) 06:23, 21 April 2016 (UTC)
 * See T28411. It seems nobody's gotten around to fixing the bug yet. – Robin Hood  (talk)  12:56, 21 April 2016 (UTC)