Ticket #6221: internet-explorer-null-vals.diff

jquery-1.4.2.js

@@ -1427 +1427 @@
                                         this.selectedIndex = -1;
                                 }
 
+                        } else if ( val === null ) {
+                                this.value = '';
+                                
                         } else {
                                 this.value = val;
                         }