From 13539e576b4af88e76c8fac334409487bfa28359 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
---
 account.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/account.py b/account.py
index 1dd7cdc694..a4a6c36920 100644
--- a/account.py
+++ b/account.py
@@ -37,5 +37,5 @@ class MoveLine(metaclass=PoolMeta):
             default = {}
         else:
             default = default.copy()
-        default.setdefault('dunnings')
+        default.setdefault('dunnings', None)
         return super(MoveLine, cls).copy(lines, default=default)