From 4aa9594a61ac46509e2c96100dade0e680036bf2 Mon Sep 17 00:00:00 2001
From: Raphael Michel <mail@raphaelmichel.de>
Date: Mon, 7 Aug 2017 14:09:12 +0200
Subject: [PATCH] Fix voucher redemption problem with subevents

---
 src/pretix/presale/views/cart.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pretix/presale/views/cart.py b/src/pretix/presale/views/cart.py
index 21fbfa3d7..34230e7f1 100644
--- a/src/pretix/presale/views/cart.py
+++ b/src/pretix/presale/views/cart.py
@@ -304,7 +304,7 @@ class RedeemView(EventViewMixin, TemplateView):
 
         self.subevent = None
         if request.event.has_subevents:
-            if 'subevent' in request.GET:
+            if request.GET.get('subevent'):
                 self.subevent = get_object_or_404(SubEvent, event=request.event, pk=request.GET.get('subevent'),
                                                   active=True)