From 1289bd8a1a8b2f3e27f50278475e35eea84d615f Mon Sep 17 00:00:00 2001
From: Gerhard Killesreiter <killes_www_drop_org@227.no-reply.drupal.org>
Date: Wed, 3 Jan 2007 21:56:58 +0000
Subject: [PATCH] #18870, Comment module outputs duplicate IDs for all *new*
 comments, backport

---
 modules/comment.module | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/modules/comment.module b/modules/comment.module
index 97c2a0248a9..afe9842f1d5 100644
--- a/modules/comment.module
+++ b/modules/comment.module
@@ -1465,10 +1465,14 @@ function theme_comment_preview($comment, $links = array(), $visible = 1) {
 };
 
 function theme_comment_view($comment, $links = array(), $visible = 1) {
+  static $first_new = TRUE;
 
-  // Emit selectors:
   $output = '';
-  if (($comment->new = node_mark($comment->nid, $comment->timestamp)) != MARK_READ) {
+  $comment->new = node_mark($comment->nid, $comment->timestamp);
+  if ($first_new && $comment->new != MARK_READ) {
+    // Assign the anchor only for the first new comment. This avoids duplicate
+    // id attributes on a page.
+    $first_new = FALSE;
     $output .= "<a id=\"new\"></a>\n";
   }