git-svn not working when parent of cloned dir requires auth

I'm trying to
'git svn clone https://mware.ucdavis.edu/svn/ucd-sakai/gradebook-gwt -s'
that repo is setup to allow anonymous reading of that directory tree, but
git-svn prompts me for a password.  I think git-svn is traversing up the
directory tree and encountering a directory that needs authn, can I prevent
it from doing that?

-- 
D. Stuart Freeman
Georgia Institute of Technology