D6422: copies: avoid calling matcher if matcher.always()

[marmoute (Pierre-Yves David)]

marmoute added a comment.


  We could maybe make it a function of both the number of heads and roots. That is not strictly the number of connected set, but that would provide a more conservative approach. That could over-sample for hour-glass shape, but they are probably less common.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D6422

To: martinvonz, #hg-reviewers
Cc: marmoute, mercurial-devel