Pierre-Yves David <pierre-yves.david@octobus.net> [Wed, 16 Dec 2020 10:59:00 +0100] rev 46580
copies-rust: refactor the "deletion" case
We rearrange the code to single out the case where information need to be
overwritten on both side of the merge. This open the way to better dealing with
this case.
Differential Revision: https://phab.mercurial-scm.org/D9651