Comment 1 for bug 330248

Possibly related, bzr unshelve spits out warnings even when it does work:

$ bzr unshelve --apply
Unshelving changes with id "1".
/home/wjlanda/lib/python/bzrlib/ui/text.py:96: UserWarning: ProgressTask(0/3, msg='Merge phase') is not the top progress task ProgressTask(None/None, msg='')
  (task, self._task_stack[-1]))
/home/wjlanda/lib/python/bzrlib/ui/text.py:96: UserWarning: ProgressTask(1/3, msg='Merge phase') is not the top progress task ProgressTask(None/None, msg='')
  (task, self._task_stack[-1]))
 M A
 M B
 M C
 M D
/home/wjlanda/lib/python/bzrlib/ui/text.py:96: UserWarning: ProgressTask(2/3, msg='Merge phase') is not the top progress task ProgressTask(None/None, msg='')
  (task, self._task_stack[-1]))
All changes applied successfully.