From 35d57cfb5cdee70107ba6a54d9c2f4b310190440 Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Fri, 14 Apr 2017 16:21:33 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E4=B8=80=E5=A4=84=E9=94=99?=
 =?UTF-8?q?=E8=AF=AF?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 library/think/Model.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/library/think/Model.php b/library/think/Model.php
index 8ad8faf1..0eec1037 100644
--- a/library/think/Model.php
+++ b/library/think/Model.php
@@ -1179,9 +1179,10 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
                 $field = $value;
                 $value = null;
             }
+
             if (!isset($this->data[$field])) {
                 $default = null;
-            } elseif (isset($this->origin[$field]) && $this->data[$field] === $this->origin[$field]) {
+            } else {
                 $default = $this->data[$field];
             }