From 397619e2f97e3f6ab558033abb6b778e5ec48d08 Mon Sep 17 00:00:00 2001
From: Uleat <uleat.charismata@gmail.com>
Date: Tue, 5 Nov 2019 18:58:46 -0500
Subject: [PATCH] Added safety check to [tar] dereference

---
 zone/merc.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zone/merc.cpp b/zone/merc.cpp
index 13f352033..4e635fe72 100644
--- a/zone/merc.cpp
+++ b/zone/merc.cpp
@@ -2156,7 +2156,7 @@ bool Merc::AICastSpell(int8 iChance, uint32 iSpellTypes) {
 								if(castedSpell) {
 									char* gmsg = nullptr;
 
-									if(tar != this) {
+									if(tar && tar != this) { // [tar] was implicitly valid at this point..this change is to catch any bad logic
 										//we don't need spam of bots healing themselves
 										MakeAnyLenString(&gmsg, "Casting %s on %s.", spells[selectedMercSpell.spellid].name, tar->GetCleanName());
 										if(gmsg)