From 845eee5ea1b4a95e182239bae77d19de45dd63a7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Sat, 7 Sep 2019 23:34:55 +0200
Subject: [PATCH] Add test to use stored value for One2Many changed without
 initial value

issue8605
review265901016
---
 trytond/tests/test_modelview.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/trytond/tests/test_modelview.py b/trytond/tests/test_modelview.py
index 341abf12b2..533f8f5540 100644
--- a/trytond/tests/test_modelview.py
+++ b/trytond/tests/test_modelview.py
@@ -77,6 +77,18 @@ class ModelView(unittest.TestCase):
                     },
                 })
 
+        # no initial value
+        record = Model()
+        record._values = {}
+        target = Target(id=1)
+        record._values['targets'] = [target]
+        target.name = 'foo'
+        self.assertEqual(record._changed_values, {
+                'targets': {
+                    'update': [{'id': 1, 'name': 'foo'}],
+                    },
+                })
+
     @with_transaction(context={'_check_access': True})
     def test_button_access(self):
         'Test Button Access'