[Trac] Tracd Bug ?

[Bernhard Glück]

Unfortunatly i am not able to run Trac on an Apache Server, so we had to 
resort on using Tracd..
This works generally fine, everything works, except login
Whenever i try to login i get the following python exception:

Oops...

Trac detected an internal error:

'int' object has no attribute 'lower'
Traceback (most recent call last):
  File "/usr/bin/tracd", line 237, in do_trac_req
    self.do_real_trac_req()
  File "/usr/bin/tracd", line 251, in do_real_trac_req
    self.remote_user = self.env.auth.do_auth(self)
  File "/usr/bin/tracd", line 100, in do_auth
    if not 'Authorization' in req.headers or \
  File "/usr/lib/python2.2/rfc822.py", line 390, in __getitem__
    return self.dict[name.lower()]
AttributeError: 'int' object has no attribute 'lower'

I am not very capable in python, so i can't really fix this myself... Or maybe it is my fault doing something wrong ? 
Anyone has a clue what is going on ? 

Thanks
Bernhard