D549: metadataonlyctx: don't crash when reusing the manifest with deletions

[quark (Jun Wu)]

quark abandoned this revision.
quark added a comment.


  I had some connectivity issues when sending this. Let's take the other one.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D549

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