From a688bcdbbd6d1df980feca17edb94d06bcb0a4a3 Mon Sep 17 00:00:00 2001
From: Raphael Collet <rco@openerp.com>
Date: Fri, 29 Jan 2016 17:39:14 +0100
Subject: [PATCH] [FIX] fields: make `copy_cache` not invalidate the cache!

---
 openerp/fields.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/openerp/fields.py b/openerp/fields.py
index ba3bc259282..fc421fc1cc5 100644
--- a/openerp/fields.py
+++ b/openerp/fields.py
@@ -64,9 +64,11 @@ def copy_cache(records, env):
     for record, target in zip(records, records.with_env(env)):
         if not target._cache:
             for name, value in record._cache.iteritems():
-                target[name] = value
                 if isinstance(value, BaseModel):
+                    target._cache[name] = value.with_env(env)
                     copy_cache(value, env)
+                else:
+                    target._cache[name] = value
 
 
 def resolve_all_mro(cls, name, reverse=False):