Comment 6 for bug 82555

The following sequence of commands:
  mkdir bob
  cd bob
  bzr init
  cd ..
  bzr branch bob branch
  cd branch
  touch some_file
  bzr add some_file
  bzr commit -m "some change on a branch"
  cd ../bob
  bzr merge ../branch
produces a branch on which 'bzr log' shows nothing. However, if you then 'bzr commit', it claims to have committed revision 1 while 'bzr log' starts showing 2 revisions. This is Not Right(TM).