Action hook for editing post

Question

I'm looking for the add_action() hook for when a current post is edited and saved. I know there's edit_post and save_post, but I'm looking for something that ONLY fires when a current post is edited, not created or altered in any other way.

Answer 1

Not a real answer.

Take a look the files that use save_post and edit_post
It will lead you to the hook post_updated

Take a look and see if you can find a hook you need. Keep in mind that you might need to do some checks in the hook.
You'll figure it out.

Answer 2

The codex doesn't really give much information but it does look like edit_post is the hook to use.

edit_post Runs when a post or page is updated/edited, including when a comment is added or updated (which causes the comment count for the post to update). Action function arguments: post or page ID.