--- nicedit.js.o	Fri Feb 25 02:08:00 2011
+++ nicedit.js	Fri Apr 15 20:22:04 2011
@@ -23,6 +23,7 @@ Drupal.wysiwyg.editor.detach.nicedit = f
     if (instance) {
       instance.ne.removeInstance(params.field);
       instance.ne.removePanel();
+      delete instance.copyElm;
     }
   }
   else {