Pierre-Yves David <pierre-yves.david@octobus.net> [Tue, 13 Oct 2020 05:15:44 +0200] rev 45821
copies: make sure deleted copy info do not overwriting unrelated ones
See test documentation for details. This is yet another corner case for copy
tracing.
Differential Revision: https://phab.mercurial-scm.org/D9200