61 immediate rollback and reentrancy issue

    62 

    63   $ echo "mq=!" >> $HGRCPATH

    64   $ hg init repo

    65   $ cd repo

    66   $ echo a > a

    67   $ hg ci -Am adda

    68   adding a

    69   $ echo b > b

    70   $ hg ci -Am addb

    71   adding b

    72   $ hg bookmarks markb

    73   $ hg rollback

    74   rolling back to revision 0 (undo commit)

    75 

    76 are you there?

    77 

    78   $ hg bookmarks

    79   no bookmarks set

    80 

    81 can you be added again?

    82 

    83   $ hg bookmarks markb

    84   $ hg bookmarks

    85    * markb                     0:07f494440405

    86   $ cd ..

    87