Unicode characters in branch name

[timqsh]

Hi! I an trying to get diffs using GitPython, and i have an issue when branch name have unicode characters.

Here is repo where bug can be reproduced:
https://github.com/timqsh/test_git_python
branch:
МояВетка

when i run this code:

repo = git.Repo('.')
HEAD = repo.head.commit

i get this error:

Traceback (most recent call last):
  File ".\test.py", line 4, in <module>
    HEAD = repo.head.commit
  File "C:\Users\kushukov\AppData\Local\Programs\Python\Python35-32\lib\site-packages\git\refs\symbolic.py", line 200, in _get_commit
    obj = self._get_object()
  File "C:\Users\kushukov\AppData\Local\Programs\Python\Python35-32\lib\site-packages\git\refs\symbolic.py", line 193, in _get_object
    return Object.new_from_sha(self.repo, hex_to_bin(self.dereference_recursive(self.repo, self.path)))
  File "C:\Users\kushukov\AppData\Local\Programs\Python\Python35-32\lib\site-packages\git\refs\symbolic.py", line 135, in dereference_recursive
    hexsha, ref_path = cls._get_ref_info(repo, ref_path)
  File "C:\Users\kushukov\AppData\Local\Programs\Python\Python35-32\lib\site-packages\git\refs\symbolic.py", line 184, in _get_ref_info
    return cls._get_ref_info_helper(repo, ref_path)
  File "C:\Users\kushukov\AppData\Local\Programs\Python\Python35-32\lib\site-packages\git\refs\symbolic.py", line 167, in _get_ref_info_helper
    raise ValueError("Reference at %r does not exist" % ref_path)
ValueError: Reference at 'refs/heads/Р\u045aР\u0455С\u040fР\u2019Р\xb5С\u201aРєР°' does not exist

I am testing this on Windows 10.

forgot to add:
GitPython 2.1.10

[Byron]

Thanks for letting us know. It's a known issue that unicode usually breaks GitPython in various ways, it wasn't written with that in mind and back in the days, unicode wasn't something that one would become aware of during implementation.