From 00752dae5f01efa3b99727d8b20a2fd2c19be59a Mon Sep 17 00:00:00 2001
From: Qrox <qrox@sina.com>
Date: Sun, 22 Dec 2019 15:39:09 +0800
Subject: [PATCH] Fix debug message in the debug mapgen menu

---
 src/editmap.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/editmap.cpp b/src/editmap.cpp
index 36b36675dc0be..e347c780c9563 100644
--- a/src/editmap.cpp
+++ b/src/editmap.cpp
@@ -1949,8 +1949,9 @@ void editmap::edit_mapgen()
  */
 void editmap::cleartmpmap( tinymap &tmpmap )
 {
-    for( auto &smap : tmpmap.grid ) {
+    for( submap *&smap : tmpmap.grid ) {
         delete smap;
+        smap = nullptr;
     }
 
     auto &ch = tmpmap.get_cache( target.z );