From 7cd20adc9ab4337a73214ce4ec6d0134417c65e3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Tr=C3=B6ger?= <stefantroeger@gmx.net>
Date: Thu, 14 Jan 2016 08:29:44 +0100
Subject: [PATCH] ShapeBinder: fix Null shape on recompute for copy

---
 src/Mod/PartDesign/App/ShapeBinder.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/Mod/PartDesign/App/ShapeBinder.cpp b/src/Mod/PartDesign/App/ShapeBinder.cpp
index 805646239..3669b5144 100644
--- a/src/Mod/PartDesign/App/ShapeBinder.cpp
+++ b/src/Mod/PartDesign/App/ShapeBinder.cpp
@@ -65,8 +65,11 @@ App::DocumentObjectExecReturn* ShapeBinder::execute(void) {
         std::vector<std::string> subs;
 
         ShapeBinder::getFilterdReferences(&Support, obj, subs);
-        Shape.setValue(ShapeBinder::buildShapeFromReferences(obj, subs)._Shape);
-        Placement.setValue(obj->Placement.getValue());
+        //if we have a link we rebuild the shape, but we change nothing if we are a simple copy
+        if(obj) {
+            Shape.setValue(ShapeBinder::buildShapeFromReferences(obj, subs)._Shape);
+            Placement.setValue(obj->Placement.getValue());
+        }
     }
 
     return Part::Feature::execute();