[04:53:44] <TheDragonFire>	 Does anyone know how to trace which template is adding a category to a page?
[05:36:25] <TheDragonFire>	 Nevermind, turns out Template:BibISBN was misbehaving.
[22:32:34] <snitch>	 [[Tech]]; Profoss; /* Caching */ new section; https://meta.wikimedia.org/w/index.php?diff=16761944&oldid=16748083&rcid=9698933