An API call to wbeditentity, that uses the existing claim guid, is able to change the property of the claim.
In the diff, the presentation assumes the property of the claim is the same before and after.
However in the previous revision, there was a 'title' claim. In the modified revision, there is a 'birth name' claim.
Either the API or the Diff logic is wrong.
Whiteboard: u=dev c=backend p=5 s=2014-04-01