fix tests

src/pretix/base/services/orders.py

@@ -2317,6 +2317,7 @@ class OrderChangeManager:
                 self._check_and_lock_memberships()
                 try:
                     self._perform_operations()
+                    self.order.refresh_from_db()
                 except TaxRule.SaleNotAllowed:
                     raise OrderError(self.error_messages['tax_rule_country_blocked'])
             self._recalculate_total_and_payment_fee()

src/tests/api/test_order_change.py

@@ -1673,6 +1673,8 @@ def test_order_change_patch(token_client, organizer, event, order, quota):
         assert p.item == item2
         f.refresh_from_db()
         assert f.value == Decimal('10.00')
+        order.refresh_from_db()
+        assert order.total == Decimal('109.44')
 
 
 @pytest.mark.django_db

src/tests/base/test_orders.py

@@ -1388,6 +1388,7 @@ class OrderChangeManagerTests(TestCase):
         assert self.order.total == Decimal('0.00')
         assert self.order.status == Order.STATUS_PAID
         self.order.status = Order.STATUS_PENDING
+        self.order.save()
         self.ocm.cancel(self.op2)
         self.ocm.commit()
         self.order.refresh_from_db()
@@ -1746,6 +1747,7 @@ class OrderChangeManagerTests(TestCase):
 
         ia.vat_id_validated = False
         ia.save()
+        self.order.refresh_from_db()
 
         self.ocm = OrderChangeManager(self.order, None)
         self.ocm.recalculate_taxes()