Prevent Fields From Clone In Product

The clone product feature is really useful, unfortuntely it also has a big downside for us. It clones some extra fields that are id's for external relations, such as to our ERP system. After cloning i have to manually delete those fields from the database to prevent issues.

Is it somehow possible to restrict certain fields from being cloned?

use hooks in the fn_clone_product function (app/functions/fn.catalog.php)