Why?

So I literally just published the fourth part of the "Nations: What Are They Anyway?" post and suddenly the third post became the fourth so that there were two of the same published. I've taken them both down.

I have no idea how this happened but it appears that all my work on discussing the third picture is gone permanently.

This is really frustrating, and considering that Blogger has no revision history, I have no way of fixing it without trying to remember what I said in the previous post and rewriting it.

I had some good thoughts and ideas on it and now just... why?

... ... ...

In the making of this post, I went to look back on the others, and it appears that if you undo when you have not made any revisions, then it changes the post to your last revised post. What is the point of that? Why would you allow for that, Blogger? Is it just some bug? If so, fix it!