node_save with pathauto for page with menu entry

Hello,

I am using the revisioning module.

I created a page with a page title "Information resources", menu title of the same and under "URL path settings", I unticked 'Automatic alias' (which would generate the path 'information-resources' with my set up), and set a custom path of 'information'.

Whenever I edit this page using the node edit form and create a new revision pathauto keeps my custom path, but whenever my custom module uses node_save and creates a new revision like this:

		$node->revision = 1;
		$node->revision_moderation = 1; 
		$node->is_pending = 1; 
		$node->log = 'New revision as node deadline has come up for editing;
		node_save($node);

the custom path is not preserved either for the new revision or the old (published) revision - instead when I look at it in the edit form again the 'Automatic alias' box is ticked.

I have solved this using path_set_alias after saving the node:

		$node->revision = 1;
		$node->revision_moderation = 1; 
		$node->is_pending = 1; 
		$node->log = 'New revision as node deadline has come up for editing;
		$path = $node->path;
		node_save($node);
		path_set_alias('node/' . $node->nid, $path);

I've noticed that this only affects nodes which have menu entries. Pages without menu entries keep their custom URL alias. I think this is a bug, non-automatically generated URL aliases should always be preserved based on this documentation http://drupal.org/node/1167612. I think (but I'm not sure) that this might have something to do with a recent set of module updates I've done. I'm reluctant to update pathauto to 6.x.2 to see if this bug still exists there, but possibly it's worth looking into.