WordPress can’t edit category slug?
WordPress wouldn’t allow me to edit the category slug “online-tools-2” down to “online-tools” no matter what I did.
Just a quick shout out here to KAVDesign.net who have posted the answer to the problem I was having… thanks guys.
The answer in my case was to delete the tag that already had the same slug (which also leads to asking what I should be using tags and categories for, how they should differ).