From 19ac3ecfc7ba4f76089b96b54dfae4bfb0667c5b Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Mon, 30 Sep 2019 23:55:11 +0200
Subject: [PATCH] fix crash when switching to fullscreen, back to normal and
 closing the sketcher

---
 src/Mod/Sketcher/Gui/ViewProviderSketch.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp b/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
index b3fbb39eea..4630731791 100644
--- a/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
+++ b/src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
@@ -5899,6 +5899,7 @@ void ViewProviderSketch::createEditInventorNodes(void)
     assert(edit);
 
     edit->EditRoot = new SoSeparator;
+    edit->EditRoot->ref();
     edit->EditRoot->setName("Sketch_EditRoot");
     pcRoot->addChild(edit->EditRoot);
     edit->EditRoot->renderCaching = SoSeparator::OFF ;
@@ -6087,6 +6088,7 @@ void ViewProviderSketch::unsetEdit(int ModNum)
 
         Gui::coinRemoveAllChildren(edit->EditRoot);
         pcRoot->removeChild(edit->EditRoot);
+        edit->EditRoot->unref();
 
         delete edit;
         edit = 0;