D451: revset: remove order information from tree

[yuja (Yuya Nishihara)]

yuja added a comment.


  In https://phab.mercurial-scm.org/D451#7257, @yuja wrote:
  
  > So, `anyorder` for `not x` would be my mistake because `x and not y` could be
  >  theoretically flipped.
  
  
  FWIW, this should be okay since `not x` follows the order of the input subset.
  The order of the `x` doesn't matter.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D451

To: quark, #hg-reviewers
Cc: yuja, mercurial-devel