First of all, it is already fixed on the 2004 DVD...
Secondly, can someone find the video I'm talking about, please? It may be in Building Empire... *checking* YUP! At 1:40:28. Take out your copy and watch. The lighting is high and shows his white shirt clearly. Then they clap the clapperboard in front of Harrison, and the lights go down. His collar remains light, but the rest of his shirt gets very dark...as if he's wearing his jacket. Shadows are tricky things, and that's all this ever was.
Here, at 1:28 (and it's even more obvious on the DVD): http://www.youtube.com/watch?v=R4Md_A2Plug&feature=channel_page
Now, let's put this to bed. ;)