From c9490bb1e9085132a040ed1222714dbcb25a3079 Mon Sep 17 00:00:00 2001
From: Helmut Merz <helmutm@cy55.de>
Date: Tue, 10 Mar 2015 09:24:04 +0100
Subject: [PATCH] allow question groups without feedback element

---
 knowledge/survey/questionnaire.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/knowledge/survey/questionnaire.py b/knowledge/survey/questionnaire.py
index bfaa45e..cd86eb2 100644
--- a/knowledge/survey/questionnaire.py
+++ b/knowledge/survey/questionnaire.py
@@ -110,7 +110,7 @@ class Response(object):
                 if qugroup.feedbackItems:
                     feedback = qugroup.feedbackItems[int(wScore)]
                 else:
-                    feedback = u''
+                    feedback = FeedbackItem()
                 result.append(dict(
                         group=qugroup,
                         feedback=feedback,