Index: modules/node/node.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/node/node.module,v
retrieving revision 1.668
diff --unified -r1.668 node.module
--- modules/node/node.module	7 Aug 2006 15:04:15 -0000	1.668
+++ modules/node/node.module	9 Aug 2006 01:38:19 -0000
@@ -536,6 +536,10 @@
     foreach ($node as $field => $data) {
       $node_current->$field = $data;
     }
+    // don't carry over the $node_current->log value
+    if (!isset($node->log) && isset($node_current->log)) {
+      unset($node_current->log);
+    }
     $node = $node_current;
 
     if ($node->revision) {