ATS Bug: Edit last post on page redirects to wrong page number

This isn't a serious bug but I'm not sure if ATS is aware of it so I thought I'd report it. It's been around for years.

I found a typo in this post:

www.abovetopsecret.com...

I fixed the typo, then ATS re-directs me to page 2 but there's no such post ID on page 2, it's still on page 1:

www.abovetopsecret.com...

This seems to happen when you edit the last post on a page (That was the 20th post on page 1). I think it should be straightforward for the code to figure out which post is on which page and usually it does except when you edit the last post on a page.

Been happening forever.

It's a pagination bug and it's not just when editing a post. If you try to go to that post from your post history, it'll come up with the wrong page number for the post id. I haven't bothered experimenting but it seems to have something to do with the sizes of the posts rather than the number of posts per page.