Index: src/org/openstreetmap/josm/actions/CreateMultipolygonAction.java
===================================================================
--- src/org/openstreetmap/josm/actions/CreateMultipolygonAction.java	(revision 4125)
+++ src/org/openstreetmap/josm/actions/CreateMultipolygonAction.java	(working copy)
@@ -101,7 +101,6 @@
             List<Command> list = this.removeTagsFromInnerWays(relation);
             list.add(new AddCommand(relation));
             Main.main.undoRedo.add(new SequenceCommand(tr("Create multipolygon"), list));
-            Main.map.relationListDialog.unfurlDialog();
             // Use 'SwingUtilities.invokeLater' to make sure the relationListDialog
             // knows about the new relation before we try to select it.
             // (Yes, we are already in event dispatch thread. But DatasetEventManager