From 1f1e5e5d26dc425692a5aeea52835e44df2e511f Mon Sep 17 00:00:00 2001
From: gwen <gremond@cadoles.com>
Date: Tue, 26 Feb 2013 17:04:41 +0100
Subject: [PATCH] type shall not be a list

---
 tiramisu/value.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tiramisu/value.py b/tiramisu/value.py
index 282c996..2ac7add 100644
--- a/tiramisu/value.py
+++ b/tiramisu/value.py
@@ -69,6 +69,8 @@ class Values(object):
     def set_previous_value(self, opt):
         if opt in self.values:
             old_value = self.values[opt]
+        elif opt.is_multi():
+            old_value = []
         else:
             old_value = None
         if type(old_value) == Multi: