If you use the
[gallery] tag at all you know that permalinks for image attachments end up like
The URL extension from the post permalink appears to be based on the attachment's title on first save. To my knowledge, however, this permalink does not update when the image title is edited in the media tools. I cannot find a way to do edit attachment permalinks at all, actually.
Is there a user-facing interface I'm missing that will let users edit an attachment's permalink?