diff -r 3bd43aa6f08d -r 445d5f1d4177 javaquery/demo-twitter/src/main/java/org/apidesign/bck2brwsr/demo/twitter/TwitterClient.java
--- a/javaquery/demo-twitter/src/main/java/org/apidesign/bck2brwsr/demo/twitter/TwitterClient.java	Mon Apr 08 12:12:42 2013 +0200
+++ b/javaquery/demo-twitter/src/main/java/org/apidesign/bck2brwsr/demo/twitter/TwitterClient.java	Mon Apr 08 12:36:12 2013 +0200
@@ -104,13 +104,16 @@
         if (modifiedList != null && modifiedList.getName() != null) {
             if (modifiedList.getName().equals(activeTweetersName)) {
                 return modifiedList;
-            } else {
-                modifiedList.setName(null);
             }
         }
         return findByName(savedLists, activeTweetersName);
     }
     
+    @OnPropertyChange("activeTweetersName")
+    static void clearModifiedList(TwitterModel m) {
+        m.setModifiedList(null);
+    }
+    
     @ComputedProperty
     static boolean hasUnsavedChanges(Tweeters modifiedList) {
         return modifiedList != null;