[FIX] l10n_ar_ux: monkey patch fiscal_position post_load

Task: 34656

l10n_ar_ux/__init__.py

@@ -4,13 +4,15 @@
 ##############################################################################
 from . import controllers
 from . import models
+from odoo import api
 from . import reports
 from . import wizards
 from .hooks import post_init_hook
 
 from odoo.addons.l10n_latam_invoice_document.models.account_move import AccountMove
 from odoo.exceptions import UserError
 
+from odoo.addons.l10n_ar.models.account_fiscal_position import AccountFiscalPosition
 
 def monkey_patch_inverse_l10n_latam_document_number():
     # monkey patch
@@ -41,3 +43,17 @@ def _inverse_l10n_latam_document_number(self):
                                       ' the POS number if there is not posted (or posted before) invoices'))
 
     AccountMove._inverse_l10n_latam_document_number = _inverse_l10n_latam_document_number
+
+def monkey_patch_inverse__get_fiscal_position():
+
+    @api.model
+    def _get_fiscal_position(self, partner, delivery=None):
+        company = self.env.company
+        if company.country_id.code == "AR":
+                self = self.with_context(
+                company_code='AR',
+                l10n_ar_afip_responsibility_type_id=partner.l10n_ar_afip_responsibility_type_id.id)
+        return super(AccountFiscalPosition, self)._get_fiscal_position(partner, delivery=delivery)
+
+
+    AccountFiscalPosition._get_fiscal_position = _get_fiscal_position

l10n_ar_ux/__manifest__.py

@@ -47,4 +47,5 @@
     'application': False,
     'post_init_hook': 'post_init_hook',
     'post_load': 'monkey_patch_inverse_l10n_latam_document_number',
+    'post_load': 'monkey_patch_inverse__get_fiscal_position',
 }

l10n_ar_ux/models/account_fiscal_position.py

@@ -1,23 +1,7 @@
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 from odoo import models, api
-from odoo.addons.l10n_ar.models.account_fiscal_position import AccountFiscalPosition
-
-
-@api.model
-def _get_fiscal_position(self, partner, delivery=None):
-    company = self.env.company
-    if company.country_id.code == "AR":
-        self = self.with_context(
-            company_code='AR',
-            l10n_ar_afip_responsibility_type_id=partner.l10n_ar_afip_responsibility_type_id.id)
-    return super(AccountFiscalPosition, self)._get_fiscal_position(partner, delivery=delivery)
-
-
-AccountFiscalPosition._get_fiscal_position = _get_fiscal_position
-
 
 class AccountFiscalPositionMp(models.Model):
-
     _inherit = 'account.fiscal.position'
 
     @api.model