SVN Authz and ACL

The "Require group" directive is ignore in apache config if a AuthzSVNAccessFile is used.... A better-formed LDAP filter should do the trick, like here
http://www.svnforum.org/threads/37237-AuthzSVNAccessFile-Require-ldap-group
but here groups are defined as groupOfNames and the memberOf attribute is not part of the user account.