From bcd8190516d3efb8bce0bfa49c25ce8f5d745379 Mon Sep 17 00:00:00 2001
From: jvoisin <julien.voisin@dustri.org>
Date: Thu, 13 May 2021 13:58:56 +0200
Subject: [PATCH] Fix a crash in aipackage.cpp

---
 components/esm/aipackage.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/components/esm/aipackage.cpp b/components/esm/aipackage.cpp
index abbd2c62c..fa20d271c 100644
--- a/components/esm/aipackage.cpp
+++ b/components/esm/aipackage.cpp
@@ -15,7 +15,12 @@ namespace ESM
     {
         AIPackage pack;
         if (esm.retSubName() == AI_CNDT) {
-            mList.back().mCellName = esm.getHString();
+            if (mList.empty()) 
+            {
+                esm.fail("AIPackge with an AI_CNDT applying to no cell.");
+            } else {
+                mList.back().mCellName = esm.getHString();
+            }
         } else if (esm.retSubName() == AI_Wander) {
             pack.mType = AI_Wander;
             esm.getHExact(&pack.mWander, 14);