D2964: context: change default changeid from old form '' to '.'

[yuja (Yuya Nishihara)]

yuja added inline comments.

INLINE COMMENTS

> context.py:65
>              be committed."""
>      def __new__(cls, repo, changeid='', *args, **kwargs):
>          if isinstance(changeid, basectx):

Nit: one more `changeid=''` here.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D2964

To: martinvonz, #hg-reviewers, pulkit
Cc: yuja, mercurial-devel