Board Thread:Support Requests - Getting Technical/@comment-80935-20140819142705/@comment-80935-20140819182934

The Wikipedia page has this:

Using MediaWiki search to find category intersections
As of April 2008 it is possible to use the Search tool to find category intersections; however, this facility does not look inside subcategories. To find a category intersection, typeincategory:"CategoryName" in the search box for each category of interest. For example, incategory:"German films" incategory:"1998 films" will return the articles that are common to both categories – German films released in 1998. This method will only work for categories which have been directly entered into articles (e.g.Category:1998 films), not where categories are assigned through templates, e.g. from any of the stub message templates or from the template.



But it isn't working for my wiki, despite getting an email from wikia.com support that the extension was just turned on at my wikis.

