From a26c5a5e32f5165055a0f17bdb322dbe11a07c8c Mon Sep 17 00:00:00 2001
From: Michael Bai <baijiangjie@gmail.com>
Date: Tue, 14 Sep 2021 14:46:13 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E8=AE=BE=E7=BD=AE?=
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---
 apps/settings/signals_handler.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/apps/settings/signals_handler.py b/apps/settings/signals_handler.py
index 32246b039..fefcc6ec1 100644
--- a/apps/settings/signals_handler.py
+++ b/apps/settings/signals_handler.py
@@ -33,8 +33,10 @@ setting_pub_sub = SettingSubPub()
 @receiver(post_save, sender=Setting)
 @on_transaction_commit
 def refresh_settings_on_changed(sender, instance=None, **kwargs):
-    if instance:
-        setting_pub_sub.publish(instance.name)
+    if not instance:
+        return
+
+    setting_pub_sub.publish(instance.name)
 
     # 配置变化: PERM_SINGLE_ASSET_TO_UNGROUP_NODE
     if instance.name == 'PERM_SINGLE_ASSET_TO_UNGROUP_NODE':