tests/test-diff-issue2761.t

hidden: Add a hiddenrevs attributes to changelog.

This attributes hold the set of all revisions that should be ommited by command
and tools displaying changesets.

This set is given as a hit. Command and tools are responsible to check it in
order to filter they outpur.

Code adding revisions to the set are responsible to the consistency of it's
data.

Test issue2761

  $ hg init

  $ touch to-be-deleted
  $ hg add
  adding to-be-deleted
  $ hg ci -m first
  $ echo a > to-be-deleted
  $ hg ci -m second
  $ rm to-be-deleted
  $ hg diff -r 0

Same issue, different code path

  $ hg up -C
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ touch doesnt-exist-in-1
  $ hg add
  adding doesnt-exist-in-1
  $ hg ci -m third
  $ rm doesnt-exist-in-1
  $ hg diff -r 1