From 6b962cfcf78b24a57cea43f1592df1dcf2646c12 Mon Sep 17 00:00:00 2001
From: Yuri Prezument
Date: Sun, 30 Dec 2012 10:58:54 +0200
Subject: Fix "default" and partial serializers, fixes #532

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

diff --git a/rest_framework/fields.py b/rest_framework/fields.py
index dd90c3f8..47bdc26a 100644
--- a/rest_framework/fields.py
+++ b/rest_framework/fields.py
@@ -189,7 +189,7 @@ class WritableField(Field):
             else:
                 native = data[field_name]
         except KeyError:
-            if self.default is not None:
+            if self.default is not None and not self.root.partial:
                 native = self.default
             else:
                 if self.required:
-- 
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