I edited w:c:tlaststand:Template:Clarify/doc and added <includeonly>[[Category:Article maintenance tags|{{PAGENAME}}]]</includeonly>
. On w:c:tlaststand:Template:Clarify, the category appears just fine, but the page does not appear on the category page itself. I've tried purging and clearing my browser cache, and viewing the category page on another browser. No go.
The odd thing is, this used to work just fine, and there's no reason as to why this shouldn't work, but it is broken as of right now. Can anyone else confirm?
ETA: Adding a category directly onto the template works just fine, but it needs to be wrapped in "noinclude" tags to avoid being transcluded to pages the template is added in. However it's practice to add template categories on the documentation page, not the template page itself.
ETA (Oct 8, 2014): I've resolved the issue with the Template:Clarify template above by manually adding the category onto the template page itself. The main issue is that categories that are transcluded onto the main template page via the documentation page aren't showing up in the category page itself.