Harmy said:
Revisionism is becoming a complete norm - I've just been watching the Hobbit TDoS EE BD extras and they said that in the DVD and BD release of the first Hobbit, they re-did some shots of Smaug in the prologue to match the TDoS version of him.
I agree that revisionism is unfortunately becoming commonplace, but FWIW I usually don't mind when the creator(s) of a work revise it in some minor way only a short time post-release. (Yes, this means I don't mind the '81 crawl.)