From 8227b1bf3daa673df5b2f8b88e7bee3ec27536d2 Mon Sep 17 00:00:00 2001
From: Peter Lama <peterldev94@gmail.com>
Date: Mon, 16 Apr 2018 14:55:03 -0700
Subject: [PATCH] Fix #3426: Hierarchical step export not working with occt 7.2

---
 src/Mod/Import/Gui/AppImportGuiPy.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/Mod/Import/Gui/AppImportGuiPy.cpp b/src/Mod/Import/Gui/AppImportGuiPy.cpp
index b83092d9ed..6c20eb94cc 100644
--- a/src/Mod/Import/Gui/AppImportGuiPy.cpp
+++ b/src/Mod/Import/Gui/AppImportGuiPy.cpp
@@ -541,7 +541,12 @@ private:
             // the App Code.
             std::vector< std::vector<App::Color> > Colors;
             get_parts_colors(hierarchical_part,FreeLabels,part_id,Colors);
-            ocaf.reallocateFreeShape(hierarchical_part,FreeLabels,part_id,Colors);
+            ocaf.reallocateFreeShape(hierarchical_part,FreeLabels,part_id,Colors);
+
+#if OCC_VERSION_HEX >= 0x070200
+            // Update is not performed automatically anymore: https://tracker.dev.opencascade.org/view.php?id=28055
+            XCAFDoc_DocumentTool::ShapeTool(hDoc->Main())->UpdateAssemblies();
+#endif
 
             Base::FileInfo file(Utf8Name.c_str());
             if (file.hasExtension("stp") || file.hasExtension("step")) {