How to use validate() with AdvanceOrder[]?

[valerioleo]

As per title, I am curious on how to (possibly) validate AdvancedOrders instead of just Orders.
I have a smart contract that is creating orders and storing them via validate() function, but they need to include some extraData field that will be used by the Zone to validate the execution.

Using the zoneHash field would not be possible as data needs to be received in clear by the Zone.

[ryanio]

Advanced orders are validated against the zone with isValidOrderIncludingExtraData

[valerioleo]

As far as I understand, also Basic Orders can be validated by a Zone (via isValidOrder). Why can Basic Orders be validated via validate() function and Advanced Orders cannot?