From 03df2b3718768b80eb091a6b2536907df3c2b31c Mon Sep 17 00:00:00 2001 From: Mira Weller Date: Wed, 9 Sep 2026 15:10:23 +0200 Subject: [PATCH] Fix PRETIXEU-FBJ --- src/pretix/api/serializers/event.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/pretix/api/serializers/event.py b/src/pretix/api/serializers/event.py index 5ffa7cfbfb..a536fe29b3 100644 --- a/src/pretix/api/serializers/event.py +++ b/src/pretix/api/serializers/event.py @@ -1104,8 +1104,8 @@ class SeatSerializer(I18nAwareModelSerializer): raise PermissionDenied('event.vouchers:read permission required for expand=voucher') prefetch_by_id(items, Voucher.objects, 'voucher_id', 'voucher') - def __init__(self, instance, *args, **kwargs): - if not kwargs.get('data'): + def __init__(self, instance=None, *args, **kwargs): + if instance and not kwargs.get('data'): self.prefetch_expanded_data(instance if hasattr(instance, '__iter__') else [instance], kwargs['context']['request'], kwargs['context']['expand_fields'])