[FIX] a_tax_balance: use '_for_xml_id' method to get actions

account_tax_balance/models/account_tax.py

@@ -180,11 +180,11 @@ class AccountTax(models.Model):
         domain = self.get_move_lines_domain(
             tax_or_base=tax_or_base, financial_type=financial_type
         )
-        action = self.env.ref("account.action_account_moves_all_tree")
-        vals = action.sudo().read()[0]
-        vals["context"] = {}
-        vals["domain"] = domain
-        return vals
+        xmlid = "account.action_account_moves_all_tree"
+        action = self.env["ir.actions.act_window"]._for_xml_id(xmlid)
+        action["context"] = {}
+        action["domain"] = domain
+        return action
 
     def view_tax_lines(self):
         self.ensure_one()

account_tax_balance/wizard/open_tax_balances.py

@@ -40,13 +40,13 @@ class WizardOpenTaxBalances(models.TransientModel):
 
     def open_taxes(self):
         self.ensure_one()
-        action = self.env.ref("account_tax_balance.action_tax_balances_tree")
-        act_vals = action.sudo().read()[0]
+        xmlid = "account_tax_balance.action_tax_balances_tree"
+        action = self.env["ir.actions.act_window"]._for_xml_id(xmlid)
         # override action name doesn't work in v12 or v10
         # we need to build a dynamic action on main keys
         vals = {
-            x: act_vals[x]
-            for x in act_vals
+            x: action[x]
+            for x in action
             if x
             in (
                 "res_model",