Merge pull request #2692 from frederic34/patch-8

Update product.class.php

htdocs/product/class/product.class.php

@@ -1514,7 +1514,7 @@ class Product extends CommonObject
 		$sql.= " weight, weight_units, length, length_units, surface, surface_units, volume, volume_units, barcode, fk_barcode_type, finished,";
 		$sql.= " accountancy_code_buy, accountancy_code_sell, stock, pmp,";
 		$sql.= " datec, tms, import_key, entity, desiredstock, tobatch, fk_unit";
-		$sql.= " ,ref_ext, fk_price_expression";
+		$sql.= " , fk_price_expression";
 		$sql.= " FROM ".MAIN_DB_PREFIX."product";
 		if ($id) $sql.= " WHERE rowid = ".$this->db->escape($id);
 		else