D7512: exchange: guard against method invocation on `b2caps=None` args

[yuja (Yuya Nishihara)]

yuja added a comment.


  >   """add a changegroup part to the requested bundle"""
  >
  > - if not kwargs.get('cg', True):
  >
  > +    if not kwargs.get('cg', True) or not b2caps:
  >
  >   return
  
  Is it valid to call these functions with `b2caps=None`? I suspect it would
  be a bug or a data corruption.

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D7512/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D7512

To: mharbison72, #hg-reviewers, dlax, indygreg
Cc: yuja, mercurial-devel