This is a continuing reported issue with the best example on http://lorelleteaches.wordpress.com/
When a tag is created, it holds the name "tagname." When the same word(s) are used in a category, the name becomes "categoryname-2" as they now share the same field in the database.
I've spent too much time (and frustration) changing the tagname to "tagname-2" and the category to "categoryname." I'd love to see this changed so category names take priority over tags to make this automatic but I understand the complexity of that wish.
What I'm challenged with now is that I cannot change the capitalization of existing categories that have the dash-2 name. I have several categories that somehow ended up in lowercase. Now my category list has mixed cases.
When I try to edit and change a category name such as "blogging" which is listed as "blogging-2" to "Blogging" WordPress.com informs me that this is a duplicate category and I cannot change the name. Categories without the -2 can be changed for capitalization without errors.
I do not think that changing "blogging" to "Blogging" should initiate such an error message.
The blog I need help with is lorelle.wordpress.com.