Bug pointed out by siebrand: should use the messages for the group, not for the group...

diff --git a/includes/SpecialUserrights.php b/includes/SpecialUserrights.php
index 23fb464..29a62e8 100644 (file)
--- a/includes/SpecialUserrights.php
+++ b/includes/SpecialUserrights.php
@@ -387,7 +387,7 @@ class UserrightsPage extends SpecialPage {
        private static function buildGroupLink( $group ) {
                static $cache = array();
                if( !isset( $cache[$group] ) )
-                       $cache[$group] = User::makeGroupLinkHtml( $group, User::getGroupMember( $group ) );
+                       $cache[$group] = User::makeGroupLinkHtml( $group, User::getGroupName( $group ) );
                return $cache[$group];
        }