137 no phases changed

   138 

   139 testing rollback:

   140 

   141  runcommand phase -r . -p

   142  runcommand commit -Am.

   143  runcommand rollback

   144 repository tip rolled back to revision 3 (undo commit)

   145 working directory now based on revision 3

   146  runcommand phase -r .

   147 3: public