Hi Dev, I'd to put a feature enhancement for future release to support mix case username login for authz access and svnperm.py. I don't believe current version 1.6.17 officially support this feature. The closest work around I can find is http://svn.haxx.se/dev/archive-2008-03/0331.shtml which requires recompiling subversion and address mix username login for authz, but not svnperm.py. My other concern with this approach in changing the code is the compatibility between svn version.
Thanks, Michael
