delete content permission doesn't work properly ($delete_perm is not set)

I'm not sure, but probably there is some bug in the code (function view_own_node_access_records())

		    $permission = $edit_via_ref_content;
		    $edit_perm = in_array($permission, $default_permissions[$rid])  ? 1 : 0;
		    $permission = $delete_via_ref_content;
		    $edit_perm = in_array($permission, $default_permissions[$rid])  ? 1 : 0;
		    $view_any_content = $view_via_ref_content;
		    $view_perm = (($edit_perm || $delete_perm) ? 1 : in_array($view_any_content, $default_permissions[$rid]));
...
		    $grants[] = array(
			'realm' => 'view_own_owner',
			'gid' => $uid,
			'grant_view' => $view_perm,
			'grant_update' => $edit_perm,
			'grant_delete' => $delete_perm,
			'priority' => 0,
		    );

$delete_perm is not set, but I think in 4th line it should $delete_perm instead of $edit_perm, because you are not setting anywhere $delete_perm variable exempt of the beginning (what is always FALSE).
So the code should be:

<code>
		    $permission = $edit_via_ref_content;
		    $edit_perm = in_array($permission, $default_permissions[$rid])  ? 1 : 0;
		    $permission = $delete_via_ref_content;
		    $delete_perm = in_array($permission, $default_permissions[$rid])  ? 1 : 0;
		    $view_any_content = $view_via_ref_content;
		    $view_perm = (($edit_perm || $delete_perm) ? 1 : in_array($view_any_content, $default_permissions[$rid]));
...

I haven't test it yet, because I don't need deletion access.
Correct me if I'm wrong.