From 3f2f8ce039dcc798806fa59bc32a7c5abaef9613 Mon Sep 17 00:00:00 2001
From: "Zheng, Lei" <realthunder.dev@gmail.com>
Date: Thu, 4 Jun 2020 11:59:13 +0800
Subject: [PATCH] Gui: fix crash on selecting removing object

The crash happens if some code calls Gui::Selection().addSelect() of a
removing object in response to App::Document::signalDeletedObject.
---
 src/Gui/Selection.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Gui/Selection.cpp b/src/Gui/Selection.cpp
index 4a3433fd65..f75d3402ec 100644
--- a/src/Gui/Selection.cpp
+++ b/src/Gui/Selection.cpp
@@ -1623,6 +1623,8 @@ int SelectionSingleton::checkSelection(const char *pDocName, const char *pObject
             FC_ERR("Object not found");
         return -1;
     }
+    if(sel.pObject->testStatus(App::ObjectStatus::Remove))
+        return -1;
     if(pSubName)
        sel.SubName = pSubName;
     if(!resolve)
@@ -1638,6 +1640,8 @@ int SelectionSingleton::checkSelection(const char *pDocName, const char *pObject
             FC_ERR("Sub-object " << sel.DocName << '#' << sel.FeatName << '.' << sel.SubName << " not found");
         return -1;
     }
+    if(sel.pResolvedObject->testStatus(App::ObjectStatus::Remove))
+        return -1;
     std::string subname;
     std::string prefix;
     if(pSubName && element) {