Ticket #19739: 19739.diff

wp-comments-post.php

@@ -36 +36 @@
         wp_die( __('Sorry, comments are closed for this item.') );
 } elseif ( 'trash' == $status ) {
         do_action('comment_on_trash', $comment_post_ID);
-        exit;
+        if ( apply_filters( 'deny_comment_on_trash', true, $comment_post_ID ) )
+                exit;
 } elseif ( !$status_obj->public && !$status_obj->private ) {
         do_action('comment_on_draft', $comment_post_ID);
-        exit;
+        if ( apply_filters( 'deny_comment_on_draft', true, $comment_post_ID ) )
+                exit;
 } elseif ( post_password_required($comment_post_ID) ) {
         do_action('comment_on_password_protected', $comment_post_ID);
         exit;