Comment 1 for bug 1496271

Same on Ubuntu 16.10 and Ubuntu 16.04 with bzr branch lp:pybik,
error message:

bzr: ERROR: exceptions.AttributeError: 'BzrBranch7' object has no attribute 'revision_history'

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 930, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 1121, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 673, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 697, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 136, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 166, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/command_classes.py", line 359, in run
    return branch_history(branch)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/branchhistory.py", line 12, in branch_history
    for revno, revision in iter_revisiondata(b):
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/branchhistory.py", line 53, in iter_revisiondata
    for no, revision_id in enumerate(branch.revision_history()):
AttributeError: 'BzrBranch7' object has no attribute 'revision_history'

bzr 2.8.0dev1 on python 2.7.12 (Linux-4.8.0-32-generic-x86_64-with-
    Ubuntu-16.10-yakkety)
arguments: ['/usr/bin/bzr', 'branch-history']
plugins: bash_completion[2.8.0dev1], bc_commit_hook_copyright_year[unknown],
    bcspaces[unknown], builddeb[2.8.6], bzrtools[2.6.0],
    changelog_merge[2.8.0dev1], diffstat[0.2.0], grep[2.8.0dev1],
    launchpad[2.8.0dev1], netrc_credential_store[2.8.0dev1],
    news_merge[2.8.0dev1], po_merge[2.8.0dev1], weave_fmt[2.8.0dev1],
    xmloutput[0.8.8]
encoding: 'utf-8', fsenc: 'UTF-8', lang: 'de_DE.UTF-8'

*** Bazaar has encountered an internal error. This probably indicates a
    bug in Bazaar. You can help us fix it by filing a bug report at
        https://bugs.launchpad.net/bzr/+filebug
    including this traceback and a description of the problem.