where did the claim that the author was the one making the changes come from? If he really had nothing to do with it, that's a massive clusterfuck.

[Edited to rephrase and correct] I posted a Deadline article that reported on this. It (and likely others) sourced a report from The Times (UK).

where did the claim that the author was the one making the changes come from? If he really had nothing to do with it, that's a massive clusterfuck.

It might be this Deadline article I found, though I think others like it pounced on a source report from The Times (UK).