From 4b6e9f40bd530d3b1534ebe9abe2f71399491718 Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Thu, 14 Feb 2008 18:32:14 +0000
Subject: [PATCH] - Patch #221057 by pwolanin: book module may overwrite
 another node's link.

---
 modules/book/book.module | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/modules/book/book.module b/modules/book/book.module
index bb4083277b..f4dc78999c 100644
--- a/modules/book/book.module
+++ b/modules/book/book.module
@@ -683,6 +683,10 @@ function book_nodeapi(&$node, $op, $teaser, $page) {
       if (!empty($node->book['bid']) && !user_access('administer nodes')) {
         $node->revision = 1;
       }
+      // Make sure a new node gets a new menu link.
+      if (empty($node->nid)) {
+        $node->book['mlid'] = NULL;
+      }
       break;
     case 'insert':
     case 'update':
-- 
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