/**
  * Filters result of is_sold_individually()
  **/
 function woo_bundles_sold_individually($is, $product)
 {
     if ($product->is_type('bundle') && !isset($product->bundled_item_ids)) {
         $product = new WC_Product_Bundle($product->id);
         return $product->is_sold_individually();
     }
     return $is;
 }