From 981e3dca65b3b76e2e258b5cab2b2bddf8e4705e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Mon, 11 Jul 2011 20:57:10 +0200
Subject: [PATCH] Fix reduce_domain to keep empty clause

review50005
---
 trytond/tests/test_tools.py | 2 ++
 trytond/tools/misc.py       | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/trytond/tests/test_tools.py b/trytond/tests/test_tools.py
index 60005efc3b..c6bb78c8be 100644
--- a/trytond/tests/test_tools.py
+++ b/trytond/tests/test_tools.py
@@ -118,6 +118,8 @@ class ToolsTestCase(unittest.TestCase):
                 ['OR', clause, ['AND', clause, ['OR', clause, clause]]]),
             (['OR', [clause]], ['OR', ['AND', clause]]),
             ([], []),
+            (['OR', clause, []], ['OR', clause, []]),
+            (['AND', clause, []], ['AND', clause, []]),
         )
         for i, j in tests:
             self.assertEqual(reduce_domain(i), j,
diff --git a/trytond/tools/misc.py b/trytond/tools/misc.py
index fc41cbdcf7..c20e264a95 100644
--- a/trytond/tools/misc.py
+++ b/trytond/tools/misc.py
@@ -446,4 +446,6 @@ def reduce_domain(domain):
                 result.extend(sub_domain[1:])
             else:
                 result.append(sub_domain)
+        else:
+            result.append(arg)
     return result