mod_authz_svn relies on httpd to authenticate users but has it's own configuration for groups. This is unnecessary, since there is already a mechanism for specifying groups in httpd. It's also undesirable because it forces you to replicate those groups in the svn access config file's [group] section. Say you already have a cool collaboration server running and you have a users and group setup all going, then you add svn into the picture. Your groups stup can't be used. I propose that the groups be looked up from httpd as are the users, and that the [groups] section be eliminated altogether. Keeping the [groups] section would create an easy source for confusing, conflicting configurations.
Original issue reported by wsanchez