#193064 patch by myself: take node by reference, when revisionn is saved, so...

#193064 patch by myself: take node by reference, when revisionn is saved, so we get the vid property updated on PHP 4 too

modules/node/node.module

@@ -837,9 +837,12 @@ function node_save(&$node) {
 
 
 /**
- * Helper function to save a revision with current user responsible for revision.
+ * Helper function to save a revision with the uid of the current user.
+ *
+ * Node is taken by reference, becuse drupal_write_record() updates the
+ * $node with the revision id, and we need to pass that back to the caller.
  */
-function _node_save_revision($node, $uid, $update = NULL) {
+function _node_save_revision(&$node, $uid, $update = NULL) {
   $temp_uid = $node->uid;
   $node->uid = $uid;
   if (isset($update)) {