From 3881d7054b6e28250b46683b8fc8172bdd56c808 Mon Sep 17 00:00:00 2001
From: Yunfan Li <lyf_liyunfan@sina.com>
Date: Tue, 9 Jul 2024 23:09:21 +0800
Subject: [PATCH] [Crash fix] Fix crash caused by duplicate login

---
 src/PlayerbotMgr.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/PlayerbotMgr.cpp b/src/PlayerbotMgr.cpp
index bd004267..1de95c56 100644
--- a/src/PlayerbotMgr.cpp
+++ b/src/PlayerbotMgr.cpp
@@ -74,6 +74,12 @@ void PlayerbotHolder::AddPlayerBot(ObjectGuid playerGuid, uint32 masterAccountId
 
 void PlayerbotHolder::HandlePlayerBotLoginCallback(PlayerbotLoginQueryHolder const& holder)
 {
+    // has bot already been added?
+    Player* loginBot = ObjectAccessor::FindConnectedPlayer(holder.GetGuid());
+    if (loginBot && loginBot->IsInWorld()) {
+        return;
+    }
+
     uint32 botAccountId = holder.GetAccountId();
 
     WorldSession* botSession = new WorldSession(botAccountId, "", nullptr, SEC_PLAYER, EXPANSION_WRATH_OF_THE_LICH_KING, time_t(0), LOCALE_enUS, 0, false, false, 0, true);