Issue: Possible Category bug

I'm going to have trouble describing this one, as I haven't seen it myself exactly, but one of my testers has reported it to me a couple times and I finally remembered to bring it to your attention.

As far as I understand it, there are category pages, and pages that belong to categories. After an import from Mediawiki, the pages need to be fixed to use the Category BBCode. After editing a page if you do not load that page again (perhaps you save the edit and then close the tab or window before it loads?) the page will not show up in the list if you check the category's page. Only after you have loaded the individual page (that belongs to a category) will it show up properly on the Category page's list.

This is more of a minor inconvenience than anything else, but when you are routinely and quickly trying to go through and edit a lot of pages at once, I can see it becoming a problem for some sites. Perhaps if there was some kind of routine check that confirmed that all categories were being listed correctly?