Index: trunk/src/org/openstreetmap/josm/gui/mappaint/mapcss/Selector.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/mappaint/mapcss/Selector.java	(revision 6946)
+++ trunk/src/org/openstreetmap/josm/gui/mappaint/mapcss/Selector.java	(revision 6949)
@@ -260,5 +260,5 @@
             } else if (ChildOrParentSelectorType.SIBLING.equals(type)) {
                 if (e.osm instanceof Node) {
-                    for (Way w : Utils.filteredCollection(e.osm.getReferrers(), Way.class)) {
+                    for (Way w : Utils.filteredCollection(e.osm.getReferrers(true), Way.class)) {
                         final int i = w.getNodes().indexOf(e.osm);
                         if (i - 1 >= 0) {