Index: trunk/src/org/openstreetmap/josm/data/osm/DataSet.java
===================================================================
--- trunk/src/org/openstreetmap/josm/data/osm/DataSet.java	(revision 12055)
+++ trunk/src/org/openstreetmap/josm/data/osm/DataSet.java	(revision 12056)
@@ -1011,5 +1011,5 @@
         beginUpdate();
         try {
-            for (Way way : OsmPrimitive.getFilteredList(node.getReferrers(), Way.class)) {
+            for (Way way : node.getParentWays()) {
                 List<Node> wayNodes = way.getNodes();
                 if (wayNodes.remove(node)) {