| Subject: | False positive triggered by punctuation |
Take a look at the word "Water" in Line 2 of this listing:
http://london.openguides.org/index.cgi?id=Shepherd%27s_Bush_Roundabout&version=7&diffversion=8
As you can see, it's marked as having been replaced, despite occurring in the same place in both versions. I think it's triggered by the trailing full stop in the second version.