Index: trunk/src/org/openstreetmap/josm/actions/PurgeAction.java
===================================================================
--- trunk/src/org/openstreetmap/josm/actions/PurgeAction.java	(revision 4052)
+++ trunk/src/org/openstreetmap/josm/actions/PurgeAction.java	(revision 4064)
@@ -208,5 +208,5 @@
         if (cbClearUndoRedo.isSelected()) {
             Main.main.undoRedo.clean();
-            Main.map.selectionListDialog.clearSelectionHistory();
+            getCurrentDataSet().clearSelectionHistory();
         }
     }