# init

  $ hg init

  $ echo a > a

  $ hg add a

  $ hg commit -m'a'

  $ echo b > b

  $ hg add b

  $ hg commit -m'b'

  $ hg up -C 0

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

  $ echo c > c

  $ hg add c

  $ hg commit -m'c'

  created new head

# test merging of diverged bookmarks

  $ hg bookmark -r 1 "c@diverge"

  $ hg bookmark -r 1 b

  $ hg bookmark c

  $ hg bookmarks

     b                         1:d2ae7f538514

   * c                         2:d36c0562f908

     c@diverge                 1:d2ae7f538514

  $ hg merge "c@diverge"

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

  (branch merge, don't forget to commit)

  $ hg commit -m'merge'

  $ hg bookmarks

     b                         1:d2ae7f538514

   * c                         3:b8f96cf4688b