The problem is that I don’t know for sure, but it supposed to solve the problem.
The issue is that this is a destructive action and all links to the old post will be broken or not helpful. Ideally, I think a redirect feature would solve this. The links to the old post will be either redirected, or auto-updated/replaced with link to the new post. If admin can replace all quotes/links to that old post to an equivalent of a new post, then it will negate the destructive downside.