From a7e460246fbc628b32a1e08da1bad1fd928377a9 Mon Sep 17 00:00:00 2001
From: Mrs4s <1844812067@qq.com>
Date: Tue, 21 Jul 2020 07:16:12 +0800
Subject: [PATCH] fix bug.

---
 client/entities.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/client/entities.go b/client/entities.go
index 33010806..ebd9533f 100644
--- a/client/entities.go
+++ b/client/entities.go
@@ -176,7 +176,7 @@ const (
 )
 
 func (g *GroupInfo) UpdateName(newName string) {
-	if g.AdministratorOrOwner() && strings.Count(newName, "") <= 20 {
+	if g.AdministratorOrOwner() && newName != "" && strings.Count(newName, "") <= 20 {
 		g.bot.updateGroupName(g.Code, newName)
 		g.Name = newName
 	}