--- a/plugins/mod_auth_anonymous.lua	Sat Jul 07 02:32:39 2012 +0100
+++ b/plugins/mod_auth_anonymous.lua	Sat Jul 07 03:42:31 2012 +0200
@@ -32,9 +32,10 @@
 		return nil, "Account creation/modification not supported.";
 	end
 
-	function provider.get_sasl_handler()
+	function provider.get_sasl_handler(session)
 		local anonymous_authentication_profile = {
 			anonymous = function(sasl, username, realm)
+				session.roster = {}; -- so that the null storage backend doesn't upset rostermanager
 				return true; -- for normal usage you should always return true here
 			end
 		};