$ mkdir test

  $ cd test

  $ echo foo>foo

  $ hg init

  $ hg addremove

  adding foo

  $ hg commit -m "1"

  $ hg verify

  checking changesets

  checking manifests

  crosschecking files in changesets and manifests

  checking files

  1 files, 1 changesets, 1 total revisions

  $ hg clone . ../branch

  updating to branch default

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cd ../branch

  $ hg co

  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ echo bar>>foo

  $ hg commit -m "2"

  $ cd ../test

  $ hg pull ../branch

  pulling from ../branch

  searching for changes

  adding changesets

  adding manifests

  adding file changes

  added 1 changesets with 1 changes to 1 files

  (run 'hg update' to get a working copy)

  $ hg verify

  checking changesets

  checking manifests

  crosschecking files in changesets and manifests

  checking files

  1 files, 2 changesets, 2 total revisions

  $ hg co

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ cat foo

  foo

  bar

  $ hg manifest --debug

  6f4310b00b9a147241b071a60c28a650827fb03d 644   foo