Ticket #18541: twenty-eleven-comment-reply-js.patch

twentyeleven/header.php

@@ -55 +55 @@
         /* We add some JavaScript to pages with the comment form
          * to support sites with threaded comments (when in use).
          */
-        if ( is_singular() && get_option( 'thread_comments' ) )
+        if ( is_singular() && get_option( 'thread_comments' ) && comments_open() )
                 wp_enqueue_script( 'comment-reply' );
 
         /* Always have wp_head() just before the closing </head>