The combination of the two seems silly.
I can delete my answer because it strikes me it's wrong, do some research, edit and undelete. I've done that, it works.
But if in the meanwhile I close the browser window or get distracted, I might not even find my self-deleted answer to edit and undelete. Because it won't show up on the list of my actions.
- Allow seeing your own post deleted by you (and not by something else) on the Activity tab
deletedaction on that list to know you deleted your post.