From 88247a3af96c16005b3a8692a1acc89cad1cf2bd Mon Sep 17 00:00:00 2001
From: tprimozi <tom.primozic@hutchinhill.com>
Date: Mon, 3 Mar 2014 15:11:05 +0000
Subject: [PATCH] Bugfix for weakref _instance bug.

---
 mongoengine/base/fields.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mongoengine/base/fields.py b/mongoengine/base/fields.py
index 04c559e2..7329151e 100644
--- a/mongoengine/base/fields.py
+++ b/mongoengine/base/fields.py
@@ -113,7 +113,7 @@ class BaseField(object):
                 instance._mark_as_changed(self.name)
 
         EmbeddedDocument = _import_class('EmbeddedDocument')
-        if isinstance(value, EmbeddedDocument) and value._instance is None:
+        if isinstance(value, EmbeddedDocument):
             value._instance = weakref.proxy(instance)
         instance._data[self.name] = value