First claimChildren3D implementation and Starting PartItem implementation

src/Gui/Document.cpp

@@ -423,6 +423,7 @@ void Document::slotNewObject(const App::DocumentObject& Obj)
             Base::Console().Error("App::Document::_RecomputeFeature(): Unknown exception in Feature \"%s\" thrown\n",Obj.getNameInDocument());
         }
 #endif
+
         std::list<Gui::BaseView*>::iterator vIt;
         // cycling to all views of the document
         for (vIt = d->baseViews.begin();vIt != d->baseViews.end();++vIt) {