diff -ur Catalyst-Plugin-Authentication-0.10007/lib/Catalyst/Plugin/Authentication.pm Catalyst-Plugin-Authentication-0.10007.undef/lib/Catalyst/Plugin/Authentication.pm
--- Catalyst-Plugin-Authentication-0.10007/lib/Catalyst/Plugin/Authentication.pm	2008-08-18 06:10:07.000000000 +0100
+++ Catalyst-Plugin-Authentication-0.10007.undef/lib/Catalyst/Plugin/Authentication.pm	2008-09-18 14:56:32.433683680 +0100
@@ -184,7 +184,7 @@
     } else {
         $realm = $c->_find_realm_for_persisted_user;
     }
-    return unless $realm; # FIXME die unless? This is an internal inconsistency
+    return undef unless $realm; # FIXME die unless? This is an internal inconsistency
 
     $c->_user( my $user = $realm->restore_user( $c, $frozen_user ) );
     
diff -ur Catalyst-Plugin-Authentication-0.10007/t/lib/AuthTestApp.pm Catalyst-Plugin-Authentication-0.10007.undef/t/lib/AuthTestApp.pm
--- Catalyst-Plugin-Authentication-0.10007/t/lib/AuthTestApp.pm	2008-01-21 08:03:35.000000000 +0000
+++ Catalyst-Plugin-Authentication-0.10007.undef/t/lib/AuthTestApp.pm	2008-09-18 14:55:54.977377904 +0100
@@ -13,9 +13,13 @@
 
 our $users;
 
+sub number_of_elements { return scalar @_ }
+
 sub moose : Local {
 	my ( $self, $c ) = @_;
 
+	is(number_of_elements($c->user), 1, "Array undef");
+	is($c->user, undef, "no user, returns undef");
 	ok(!$c->user, "no user");
 	ok($c->login( "foo", "s3cr3t" ), "can login with clear");
 	is( $c->user, $users->{foo}, "user object is in proper place");