From d0f0a12a620607358ab1758168fa18006d5ec027 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20P=C3=A9ters?= <fpeters@entrouvert.com>
Date: Thu, 30 Aug 2018 13:50:24 +0200
Subject: [PATCH] saml: don't crash on empty multi select field (#25965)

---
 src/authentic2/saml/fields.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/authentic2/saml/fields.py b/src/authentic2/saml/fields.py
index a50df1cf..0df773cb 100644
--- a/src/authentic2/saml/fields.py
+++ b/src/authentic2/saml/fields.py
@@ -165,6 +165,8 @@ class MultiSelectField(models.Field):
     def to_python(self, value):
         if isinstance(value, list):
             return value
+        if not value:
+            return []
         return value.split(",")
 
     def from_db_value(self, value, expression, connection, context):
-- 
2.18.0