From 421bd13ddf599483bd4204e62dfe1d9d5d6887d0 Mon Sep 17 00:00:00 2001
From: Jens Langhammer <jens.langhammer@beryju.org>
Date: Sat, 19 Sep 2020 00:00:55 +0200
Subject: [PATCH] admin: make YAMLField return empty dict when empty yaml is
 given

---
 passbook/admin/fields.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/passbook/admin/fields.py b/passbook/admin/fields.py
index 8959b323f..e25cdd0cf 100644
--- a/passbook/admin/fields.py
+++ b/passbook/admin/fields.py
@@ -53,6 +53,8 @@ class YAMLField(forms.JSONField):
             )
         if isinstance(converted, str):
             return YAMLString(converted)
+        if converted is None:
+            return {}
         return converted
 
     def bound_data(self, data, initial):