From e846d4c3ef04d75839325409df109156d8ccced0 Mon Sep 17 00:00:00 2001
From: Wyrserth <43747507+Wyrserth@users.noreply.github.com>
Date: Sun, 16 Jun 2019 20:00:57 +0200
Subject: Core/SAI: don't allow to start a new SAI actionlist while the entity
 is already running one. (#23421)

(cherry picked from commit 2b1cde25604b6400ac327801d8e1649e30688f5a)
---
 src/server/game/AI/SmartScripts/SmartScript.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/server/game/AI/SmartScripts')

diff --git a/src/server/game/AI/SmartScripts/SmartScript.cpp b/src/server/game/AI/SmartScripts/SmartScript.cpp
index ddaab3492e0..06d28bad846 100644
--- a/src/server/game/AI/SmartScripts/SmartScript.cpp
+++ b/src/server/game/AI/SmartScripts/SmartScript.cpp
@@ -4143,6 +4143,10 @@ void SmartScript::SetTimedActionList(SmartScriptHolder& e, uint32 entry, Unit* i
         return;
     }
 
+    // Do NOT allow to start a new actionlist if a previous one is already running. We need to always finish the current actionlist
+    if (!mTimedActionList.empty())
+        return;
+
     mTimedActionList.clear();
     mTimedActionList = sSmartScriptMgr->GetScript(entry, SMART_SCRIPT_TYPE_TIMED_ACTIONLIST);
     if (mTimedActionList.empty())
-- 
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