delta not set correctly

I believe the "delta" in the node reference table refers to the offset in a field with multiple values. As in: an array of references from one field indexed by their delta's. This is used to display the nodes referenced in a particular order.

this module sets the delta to be the NID, much like the (non javascript) select widget defined in nodereference.module . It's not really a problem with the normal multiple select widget because there isn't any obvious ordering to how you've selected the nodes, but with multiselect, you can induce a particular ordering, thus the delta field can have a useful value. For instance, if I select (in this order) to reference nodes 4, 1, and 2, then submit my node, the published version will have the nodes referenced in the order 1, 2, then 4.

If it's not clear what I mean, use the autocomplete widget, and reference nodes 4, 1, and 2. Their order is maintained.

I've hacked the module in such a way as to re-index the node_field array in multiselect.module and it works, so I think it should be possible to fix, but I'd rather have someone more comfortable with the module change it.

here's what I changed (starting from line 180):

      case 'process form values':
          //Replace the node values
        if ($field['multiple'])
        {
          $node_field = content_transpose_array_rows_cols(array('nid' => $node_field['nids']));
          
          //since the node_field is ordered correctly, we can manually re-index the deltas.
          $new_delta = 0;
          $reindexed_node_field = array();
          foreach($node_field as $old_delta => $nid ){
            $reindexed_node_field[$new_delta] = $nid;
            $new_delta++;
          }
          $node_field = $reindexed_node_field;

        }
        else
        {
          $node_field[0]['nid'] = $node_field['nids'];
        }

When I save a node using this code then view it, the order is as expected, but when I edit the node, the form populates the multiselect widget in the order of the referenced nodes's nids, thus when saved it reverts to the undesirable ordering.