From 1ae5bf7ffb1d838bcccfd3bdc44194ed67606106 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Tue, 7 Jul 2020 08:43:46 +0200
Subject: [PATCH] Fem: [skip ci] fix bug in ViewProviderFemPostFunction::attach
 When applying an action on a node its reference count must be > 0

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

diff --git a/src/Mod/Fem/Gui/ViewProviderFemPostFunction.cpp b/src/Mod/Fem/Gui/ViewProviderFemPostFunction.cpp
index e7e3af42d0..d57938df8e 100644
--- a/src/Mod/Fem/Gui/ViewProviderFemPostFunction.cpp
+++ b/src/Mod/Fem/Gui/ViewProviderFemPostFunction.cpp
@@ -178,6 +178,7 @@ void ViewProviderFemPostFunction::attach(App::DocumentObject *pcObj)
     m_manip->ref();
 
     SoSeparator* pcEditNode = new SoSeparator();
+    pcEditNode->ref();
 
     pcEditNode->addChild(color);
     pcEditNode->addChild(m_transform);
@@ -206,6 +207,7 @@ void ViewProviderFemPostFunction::attach(App::DocumentObject *pcObj)
 
     addDisplayMaskMode(pcEditNode, "Default");
     setDisplayMaskMode("Default");
+    pcEditNode->unref();
 }
 
 bool ViewProviderFemPostFunction::doubleClicked(void) {