Re: Supporting convergence

In weave terms, this seems a bit like allowing for lines to be
reinserted  following a revision that deletes them.

Perhaps there are practical problems in automatically inferring
reversions, if you're doing it just by looking at text changes?  It is
probably common to incidentally change some lines back to their
previous version, without the whole commit being a reversion.  It's
probably also common to semantically undo a change, but have some
context or whitespace changes that mean the reversion is not seen as
such.  Nevertheless njs's idea of trying to solve this for scalars
first before worrying about text files is probably a good way to
proceed.

-- 
Martin