[RES] account_refund_early_payment: The split tax from price unit cal…

…culation on the invoice line will only be done if the tax doesn't have set the option to be included in price, because odoo will do the calculation. (#1331)

account_refund_early_payment/wizard/account_invoice_refund.py

@@ -50,15 +50,18 @@ def compute_refund(self, mode):
                 break
             percentage = inv.amount_total / total
             taxes = self.product_id.taxes_id
-            tax_perc = sum(taxes.mapped('amount'))
+            tax_perc = sum(taxes.filtered(
+                lambda tax: not tax.price_include
+                and tax.amount_type == 'percent').mapped('amount'))
             self.env['account.invoice.line'].create({
                 'invoice_id': refund.id,
                 'product_id': self.product_id.id,
                 'name': self.product_id.name_get()[0][1],
                 'uom_id': self.product_id.uom_id.id,
                 'invoice_line_tax_ids': [
                     (6, 0, taxes._ids)],
-                'price_unit': self.amount_total * percentage / (1.0 + abs(tax_perc) / 100),
+                'price_unit': self.amount_total * percentage / (
+                    1.0 + (tax_perc or 0.0) / 100),
                 'account_id': self.product_id.property_account_income_id.id or
                               self.product_id.categ_id.property_account_income_categ_id.id
             })