Lucas doesn't have an original vision and he never did. It's not a crime, it's just inconvenient for people who want differing editions of the movies. Some of us want A, some of us want D. The way Lucas works, things change pretty often. I bet you any money Luke and Leia weren't sisters in 77. That's just the way the guy works, he changes things because he's obsessive complusive and continues to think that there's ways of improving the movie. It's unfortunate but it's all too common with filmmakers and artists of all kinds. Heck, I do it sometimes. (No one complains because not many people see my movies).