[T6796][FIX] currency_id and cost_currency_id from product.template can be...

Merged Javier Vescio requested to merge T6796 into 15.0-prod

[T6796][FIX] currency_id and cost_currency_id from product.template can be changed. Currency conversion in purchase.order now depends on cost_currency_id from product and purchase.order currency_id

Merge request reports