1. Summarise the issue (what were doing, what went wrong?)
Darcs is not ideal as a wiki backend such as it is used in gitit merely
because it does not support word-based/word-by-word diffing rather than
Word-based diffing requires a new patch semantics, which in turn requires
breaking compatibility with existing patch formats. Hence I mark this
feature request as "Darcs 3".
See also http://darcs.net/Darcs3Wishlist