When you make a thread, the forum auto-tags the name of the category you select in your post. However, you're not allowed to tag the name of a category in your post. So when I go to edit a post, I have to delete the tag, make my edit, save, and then it re-tags it for me.
I know I made this edit in my thread but... I had to be first in the support category. I just had to be.
Your friend,
Extra Z
-
With the new forum categories work, they may not be used as tags like they could before (when they were just "official tags"). Old posts that use multiple official tags will force you to retag them when you edit.