From 2bdc94af601c755bac4b81ec17cbc21f49a152d9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20P=C3=A9ters?= <fpeters@entrouvert.com>
Date: Mon, 13 Aug 2018 21:33:11 +0200
Subject: [PATCH] authentic: handle role emails being None (#25670)

---
 hobo/agent/authentic2/role_forms.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hobo/agent/authentic2/role_forms.py b/hobo/agent/authentic2/role_forms.py
index 11920b4..228bbb8 100644
--- a/hobo/agent/authentic2/role_forms.py
+++ b/hobo/agent/authentic2/role_forms.py
@@ -41,6 +41,8 @@ class ListValidator(object):
 
 class CommaSeparatedInput(forms.TextInput):
     def _format_value(self, value):
+        if not value:
+            return ''
         if not isinstance(value, basestring):
             return u', '.join(value)
         return value
-- 
2.18.0