D4162: index: don't include nullid in the internal "length" field

[durin42 (Augie Fackler)]

durin42 added a comment.


  Can I interest you in adding a test for `len(index)` to `test-parseindex2.py`? I suspect we have some differences between pure and C code right now...

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D4162

To: martinvonz, #hg-reviewers
Cc: durin42, mercurial-devel