See this: http://en.wikipedia.org/w/index.php?title=Dijon&curid=99187&diff=588...
It looks to me like the only thing that has changed here is a couple of new lines have been removed, and the words "Dijon is the capital of bourgogne and " replace "The city". However, the entire paragraph is highlighted in red, making it hard to see what's really changed.
Maybe a case to bear in mind if anyone's playing with the diffing algorithm?
Steve