Index: trunk/src/org/openstreetmap/josm/gui/dialogs/properties/PropertiesDialog.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/dialogs/properties/PropertiesDialog.java	(revision 7112)
+++ trunk/src/org/openstreetmap/josm/gui/dialogs/properties/PropertiesDialog.java	(revision 7113)
@@ -666,8 +666,5 @@
             @Override public int compare(Relation o1, Relation o2) {
                 int comp = Boolean.valueOf(o1.isDisabledAndHidden()).compareTo(o2.isDisabledAndHidden());
-                if (comp == 0) {
-                    comp = o1.getDisplayName(DefaultNameFormatter.getInstance()).compareTo(o2.getDisplayName(DefaultNameFormatter.getInstance()));
-                }
-                return comp;
+                return comp != 0 ? comp : DefaultNameFormatter.getInstance().getRelationComparator().compare(o1, o2);
             }}
                 );