[mod_python] mod_python on / and authentication on /login (using trac)

Hi,

I'm fighting against a strange issue with a setup that involves having
mod_python on Location "/" and authenticating only on certain URLs
like /login. This is for example the typical setup for a trac
dedicated site, see

http://trac.edgewall.org/ticket/3821

for the background. It doesn't happen if mod_python/trac is hooked on
"/trac" and the authentication on "/trac/login".

The combinations that are known to exhibit or not this error are

httpd modpython trac     works
2.2.3 3.6.20    0.10     no
2.2.2 3.3.1     0.10.3   no
2.2.3 3.2.8     0.10.3.1 yes
2.2.2 3.2.10    0.10.3   no

Any ideas what's going wrong or how I could debug this further?

Thanks!
-- 
Axel.Thimm at ATrpms.net
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