The client library was forgetting to set flags in the xdr arguments, so the server would always use default (empty) flags.
this would break any application asking for MUTUAL auth for example. Discovered with libssh which requires it.
Ticket has been cloned to Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1031713
Reviewed & pushed to master. Thanks.
Metadata Update from @simo: - Issue assigned to gd - Issue set to the milestone: 2013 November