Retouching error?

Just got this from Model Mayhem "Emma Watson Now a One-Legged Wonder", the article is about Emma Watson, the young lady star of the movie Harry Potter who somehow lost her right limb on one particular photo for Burberry SS2010 ad. There are some discussion on Model Mayhem whether  if it's a big retouching error some or just about the angle or bad posing direction. I saw Mario Testino Portfolio online (he's the photographer of this picture) and his works are magnificent so I assumed he commissioned somebody to retouch this image. What do you think?

Here's the article