From 2b0bfa8e8bc560fae81a295542c27b35a62bacbc Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Mon, 24 Apr 2017 16:11:32 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E8=BF=9BModel=E7=B1=BB=E6=98=AF=5F=5F?=
 =?UTF-8?q?unset=E5=92=8C=5F=5Fisset=E6=96=B9=E6=B3=95=E5=88=A4=E6=96=AD?=
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---
 library/think/Model.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/library/think/Model.php b/library/think/Model.php
index 71186b91..1f747753 100644
--- a/library/think/Model.php
+++ b/library/think/Model.php
@@ -1975,7 +1975,7 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
     public function __isset($name)
     {
         try {
-            if (array_key_exists($name, $this->data)) {
+            if (array_key_exists($name, $this->data) || array_key_exists($name, $this->relation)) {
                 return true;
             } else {
                 $this->getAttr($name);
@@ -1995,7 +1995,7 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
      */
     public function __unset($name)
     {
-        unset($this->data[$name]);
+        unset($this->data[$name], $this->relation[$name]);
     }
 
     public function __toString()