Forum:Automatic Category Bug?

Is there some kind of automatic category assigner? For instance on my page Descendants of John Gore (bef1635-bef1674)]] I keep deleting a couple of these :

"[[Category:"

They keep coming back though. I am not sure if this is happening on other pages since I have mostly been working on this one for the past few days. Thought maybe this is a bug. Anyone else experiencing this? Will 02:33, 12 December 2007 (UTC)