From 3460c50afa31993c3c670b3948cdec2cac9ea908 Mon Sep 17 00:00:00 2001
From: Seth Hillbrand <seth@kipro-pcb.com>
Date: Sun, 27 Nov 2022 16:21:06 -0800
Subject: [PATCH] Attempt to avoid double-free when shutting down on Windows

---
 pcbnew/dialogs/pcb_properties_panel.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pcbnew/dialogs/pcb_properties_panel.cpp b/pcbnew/dialogs/pcb_properties_panel.cpp
index 92f6b3e99b..4a833712fb 100644
--- a/pcbnew/dialogs/pcb_properties_panel.cpp
+++ b/pcbnew/dialogs/pcb_properties_panel.cpp
@@ -54,6 +54,7 @@ PCB_PROPERTIES_PANEL::~PCB_PROPERTIES_PANEL()
         wxPGGlobalVars->m_mapEditorClasses.erase( it );
 
         delete static_cast<PG_UNIT_EDITOR*>( it->second );
+        it->second = nullptr;
     }
 }