Index: node.module
===================================================================
--- node.module	(revision 42756)
+++ node.module	(working copy)
@@ -1095,6 +1095,7 @@
     if ($node->is_new) {
       // For new nodes, save new records for both the node itself and the node
       // revision.
+      unset($node->vid);
       drupal_write_record('node', $node);
       _node_save_revision($node, $user->uid);
       $op = 'insert';