From c8c4686543f200a2feb1bfaf5b0ef2e11a4fd90f Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Mon, 11 Apr 2022 11:58:57 +0200
Subject: [PATCH] Part: fixes #6282: exportStep breaking model

---
 src/Mod/Part/App/TopoShape.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Mod/Part/App/TopoShape.cpp b/src/Mod/Part/App/TopoShape.cpp
index 115dd625aa..5cecc40b30 100644
--- a/src/Mod/Part/App/TopoShape.cpp
+++ b/src/Mod/Part/App/TopoShape.cpp
@@ -395,7 +395,7 @@ TopoDS_Shape TopoShape::getSubShape(TopAbs_ShapeEnum type, int index, bool silen
 
 unsigned long TopoShape::countSubShapes(const char* Type) const
 {
-    if(!Type)
+    if(!Type)
         return 0;
     if(strcmp(Type,"SubShape")==0)
         return countSubShapes(TopAbs_SHAPE);
@@ -990,6 +990,10 @@ void TopoShape::exportIges(const char *filename) const
 void TopoShape::exportStep(const char *filename) const
 {
     try {
+        // Fixes issue #6282
+        // Do not write out any assembly information when using the simplified STEP export
+        Interface_Static::SetIVal("write.step.assembly", 0);
+
         // write step file
         STEPControl_Writer aWriter;