Index: trunk/src/org/openstreetmap/josm/gui/dialogs/properties/PropertiesDialog.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/dialogs/properties/PropertiesDialog.java	(revision 17461)
+++ trunk/src/org/openstreetmap/josm/gui/dialogs/properties/PropertiesDialog.java	(revision 17462)
@@ -616,4 +616,5 @@
     @Override
     public void destroy() {
+        membershipMenuHandler.setPrimitives(Collections.emptyList());
         destroyTaginfoNationalActions();
         membershipTable.removeMouseListener(popupMenuLauncher);