Index: /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/gui/OdDialog.java
===================================================================
--- /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/gui/OdDialog.java	(revision 28615)
+++ /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/gui/OdDialog.java	(revision 28616)
@@ -141,4 +141,5 @@
         super.destroy();
         MapView.removeLayerChangeListener(this);
+        MapView.removeEditLayerChangeListener(this);
     }
 }