Index: /trunk/src/org/openstreetmap/josm/data/validation/tests/DuplicateRelation.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/data/validation/tests/DuplicateRelation.java	(revision 15128)
+++ /trunk/src/org/openstreetmap/josm/data/validation/tests/DuplicateRelation.java	(revision 15129)
@@ -227,5 +227,6 @@
     @Override
     public void visit(Relation r) {
-        if (!r.isUsable() || r.hasIncompleteMembers() || "tmc".equals(r.get("type")) || "TMC".equals(r.get("type")))
+        if (!r.isUsable() || r.hasIncompleteMembers() || "tmc".equals(r.get("type")) || "TMC".equals(r.get("type"))
+                || r.getMembers().isEmpty())
             return;
         List<RelationMember> rMembers = r.getMembers();