From 2ffd8801b67113a27a22823c61ea452365cc9cc3 Mon Sep 17 00:00:00 2001
From: Wenjie Zheng <wenjie.zheng@tiolive.com>
Date: Wed, 15 Jul 2015 10:23:52 +0000
Subject: [PATCH] Workflow.py: in showAsXML, turn property_value into an empty
 string when it is an empty tuple.

---
 product/ERP5Workflow/Document/Workflow.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/product/ERP5Workflow/Document/Workflow.py b/product/ERP5Workflow/Document/Workflow.py
index 967817767e..84c694912b 100644
--- a/product/ERP5Workflow/Document/Workflow.py
+++ b/product/ERP5Workflow/Document/Workflow.py
@@ -832,7 +832,7 @@ class Workflow(IdAsReferenceMixin("", "prefix"), XMLObject):
             property_value = tdef.getPermissionList()
           if property_id == 'expr':
             property_value = tdef.getExpression()
-          if property_value is None or property_value == []:
+          if property_value is None or property_value == [] or property_value == ():
             property_value = ''
           elif property_id != 'expr':
             property_value = tuple(property_value)
-- 
2.30.9