57   $ hg up 0

    57   $ hg up 0

    58   0 files updated, 0 files merged, 1 files removed, 0 files unresolved

    58   0 files updated, 0 files merged, 1 files removed, 0 files unresolved

    59   $ mkcommit C0

    59   $ mkcommit C0

    60   created new head

    60   created new head

    61   $ hg debugobsolete --record-parents `getid "desc(B0)"`

    61   $ hg debugobsolete --record-parents `getid "desc(B0)"`

    62   $ hg log -G --hidden

    63   $ hg log -G --hidden

    63   @  0f88766e02d6 (draft): C0

    64   @  0f88766e02d6 (draft): C0

    64   |

    65   |

    65   | x  d73caddc5533 (draft): B0

    66   | x  d73caddc5533 (draft): B0

    66   | |

    67   | |