From 8d3785b12b48a0bfc56eb25e6ae41fdb3cdcfc3f Mon Sep 17 00:00:00 2001
From: vsv <vsv@opencascade.com>
Date: Fri, 22 Nov 2019 11:02:25 +0300
Subject: [PATCH] Fix for module activation when in a list of features there
 are folders

---
 src/XGUI/XGUI_Workshop.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/XGUI/XGUI_Workshop.cpp b/src/XGUI/XGUI_Workshop.cpp
index f97e58aa6..97e6089ca 100644
--- a/src/XGUI/XGUI_Workshop.cpp
+++ b/src/XGUI/XGUI_Workshop.cpp
@@ -2804,6 +2804,8 @@ void XGUI_Workshop::synchronizeGroupInViewer(const DocumentPtr& theDoc,
   int aSize = theDoc->numInternalFeatures();
   for (int i = 0; i < aSize; i++) {
     aFeature = theDoc->internalFeature(i);
+    if (!aFeature.get())
+      continue;
     const std::list<ResultPtr>& aResults = aFeature->results();
     std::list<ResultPtr>::const_iterator aIt;
     aFeature->setDisplayed(false);
-- 
2.30.2