$field['php'] set to 1 makes it impossible to set CCK fivestar target in hook_nodeapi

I'm writing a simple module that during hook_nodeapi case update, sets the target of the Fivestar CCK widget to match the nid value of a nodereference field in the same node. However, the target is overwritten, no matter what system weight my module and fivestar have, because of the way the $field['php'] value is evaluated.

In fivestar_field.inc on line 47, Fivestar sets $form['php'] #value to 1 if the user viewing the form has the 'use PHP for fivestar target' permission. In fivestar_field(), on case update(when the field is being submitted), when $field['php'] is true, Fivestar evaluates the (empty) target php text area, setting the target to NULL. Then, when if (is_numeric($items[$delta]['target'])) comes back as false, the target is set to the target of the node containing the Fivestar CCK widget. Instead, I think fivestar should check to see if $form['php'] is true and verify that there is in fact some PHP to evaluate before setting the target. That way, I could set it very simply in my own separate module, without entering PHP into the textarea.

If the maintainers think this is a good idea, I'll submit a patch.