bumpversion --help causes assertion, when in git-workdir

[jenisys]

VERSION: bumpversion 0.3.0

The new version hast the following problem:

$ bumpversion -h
Traceback (most recent call last):
  File "/.../virtualenv/bumpversion.example/bin/bumpversion", line 8, in <module>
    load_entry_point('bumpversion==0.3.0', 'console_scripts', 'bumpversion')()
  File "/.../virtualenv/bumpversion.example/lib/python2.7/site-packages/bumpversion/__init__.py", line 226, in main
    context=dict(list(prefixed_environ().items()) + list(vcs_info.items()))
  File "/.../virtualenv/bumpversion.example/lib/python2.7/site-packages/bumpversion/__init__.py", line 148, in attempt_version_bump
    assert bumped
AssertionError

This problem exists only in a directory under bump version (and git) control.
When I go one directory level up, everything is fine.

BACKGROUND INFO:
I created a virtualenv w/ bumpversion 0.2.1.
There I create a git repository to explore bumpversion.
Now I upgraded the virtualenv to version 0.3.0.

[peritus]

Ouch. Will fix that.

[peritus]

Thanks for the report!

[peritus]

this is part of v0.3.1 (on PyPI as of now)