[FIX] sale: the order should define if price_included or not

Fiscal Position might map a price_excluded to a price_included
tax therefore we map the advance payment product tax accordingly
before checking which amount we will use for the computation

closes odoo/odoo#123209

Signed-off-by: Victor Feyens (vfe) <vfe@odoo.com>

addons/sale/wizard/sale_make_invoice_advance.py

@@ -106,7 +106,8 @@ class SaleAdvancePaymentInv(models.TransientModel):
     def _get_advance_details(self, order):
         context = {'lang': order.partner_id.lang}
         if self.advance_payment_method == 'percentage':
-            if all(self.product_id.taxes_id.mapped('price_include')):
+            advance_product_taxes = self.product_id.taxes_id.filtered(lambda tax: tax.company_id == order.company_id)
+            if all(order.fiscal_position_id.map_tax(advance_product_taxes).mapped('price_include')):
                 amount = order.amount_total * self.amount / 100
             else:
                 amount = order.amount_untaxed * self.amount / 100