Index: /trunk/src/org/openstreetmap/josm/actions/UpdateSelectionAction.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/actions/UpdateSelectionAction.java	(revision 1882)
+++ /trunk/src/org/openstreetmap/josm/actions/UpdateSelectionAction.java	(revision 1883)
@@ -172,5 +172,7 @@
                     Way way = (Way)primitive;
                     for (Node node: way.nodes) {
-                        reader.append(node);
+                        if (node.id > 0) {
+                            reader.append(node);
+                        }
                     }
                 }