From 9aa77bb3c967f3ceb5e14047791a7b8cc4176503 Mon Sep 17 00:00:00 2001
From: Ross Lawley <ross.lawley@gmail.com>
Date: Tue, 21 May 2013 07:07:17 +0000
Subject: [PATCH] Fixed pickle unsaved document regression (#327)

---
 docs/changelog.rst           | 4 ++++
 mongoengine/base/document.py | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/docs/changelog.rst b/docs/changelog.rst
index 383f9af5..6954cfd5 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -2,6 +2,10 @@
 Changelog
 =========
 
+Changes in 0.8.1
+================
+- Fixed pickle unsaved document regression (#327)
+
 Changes in 0.8.0
 ================
 - Fixed querying ReferenceField custom_id (#317)
diff --git a/mongoengine/base/document.py b/mongoengine/base/document.py
index 018adbf3..719d8866 100644
--- a/mongoengine/base/document.py
+++ b/mongoengine/base/document.py
@@ -143,7 +143,8 @@ class BaseDocument(object):
     def __getstate__(self):
         data = {}
         for k in ('_changed_fields', '_initialised', '_created'):
-            data[k] = getattr(self, k)
+            if hasattr(self, k):
+                data[k] = getattr(self, k)
         data['_data'] = self.to_mongo()
         return data