From 7c83a2d05d706672b0b06660c2ed3a5f3fd7a812 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Fri, 13 Sep 2019 13:08:48 +0200
Subject: [PATCH] fix regression caused by commit 469e3b5bf

---
 src/App/Document.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/App/Document.cpp b/src/App/Document.cpp
index f82e6814e5..961340bdb6 100644
--- a/src/App/Document.cpp
+++ b/src/App/Document.cpp
@@ -3537,9 +3537,10 @@ DocumentObject * Document::addObject(const char* sType, const char* pObjectName,
 
     pcObject->setStatus(ObjectStatus::PartialObject, isPartial);
 
-    if(!viewType)
+    if (!viewType || viewType[0] == '\0')
         viewType = pcObject->getViewProviderNameOverride();
-    if(viewType) 
+
+    if (viewType && viewType[0] != '\0')
         pcObject->_pcViewProviderName = viewType;
 
     signalNewObject(*pcObject);