D8398: fastexport: fix diagnostics

[martinvonz (Martin von Zweigbergk)]

martinvonz added a comment.


  What was broken before? The test case still seems to pass for me if I undo the code change.

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D8398/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D8398

To: joerg.sonnenberger, #hg-reviewers, pulkit
Cc: martinvonz, mercurial-devel