From 1ffc40e8f0ec19ab9aae574ba2125c4559500ed2 Mon Sep 17 00:00:00 2001
From: Jeremy Stretch <stretch@packetlife.net>
Date: Wed, 11 Dec 2019 17:04:48 -0500
Subject: [PATCH] CSVChoiceField should default to a blank string instead of
 None

---
 netbox/utilities/forms.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/netbox/utilities/forms.py b/netbox/utilities/forms.py
index ee63712a0..9c6a2f9ba 100644
--- a/netbox/utilities/forms.py
+++ b/netbox/utilities/forms.py
@@ -432,7 +432,7 @@ class CSVChoiceField(forms.ChoiceField):
     def clean(self, value):
         value = super().clean(value)
         if not value:
-            return None
+            return ''
         if value not in self.choice_values:
             raise forms.ValidationError("Invalid choice: {}".format(value))
         return self.choice_values[value]