From dd32870e4061eb373694ad700a7e3cc71fa73da1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Sat, 1 Sep 2018 01:02:03 +0200
Subject: [PATCH] Improve ModelStorage.copy

* Allow callable in copy default
* Support dotted notation in copy default
* Use setdefault in copy
* Copy default when needed
* Do not set default state in copy
* Use callable and dotted notation in copy default

issue5576
issue7648
review72291002
---
 statement.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/statement.py b/statement.py
index 85ad9336d7..74d5f5c80e 100644
--- a/statement.py
+++ b/statement.py
@@ -101,7 +101,7 @@ class StatementLine(metaclass=PoolMeta):
         else:
             default = default.copy()
         default.setdefault('payment', None)
-        default.setdefault('payment_group')
+        default.setdefault('payment_group', None)
         return super(StatementLine, cls).copy(lines, default=default)
 
     @fields.depends('payment', 'party', 'account', '_parent_statement.journal')