Fix crash in self-service cancellation

PRETIXEU-23B
2020-04-24 16:52:11 +02:00
parent 6f1c29581d
commit e2b9fe8e71
1 changed files with 1 additions and 1 deletions
--- a/src/pretix/presale/views/order.py
+++ b/src/pretix/presale/views/order.py
@@ -778,7 +778,7 @@ class OrderCancelDo(EventViewMixin, OrderDetailMixin, AsyncAction, View):
        )
        if self.request.event.settings.cancel_allow_user_paid_require_approval:
            self.order.cancellation_requests.create(
-                cancellation_fee=fee,
+                cancellation_fee=fee or Decimal('0.00'),
                refund_as_giftcard=giftcard,
            )
            self.order.log_action('pretix.event.order.refund.requested')