Eliminate superfluous DPG executes

src/Mod/TechDraw/App/DrawProjGroupItem.h

@@ -62,7 +62,7 @@ public:
     virtual void onDocumentRestored() override;
     virtual void unsetupObject() override;
 
-    DrawProjGroup* getGroup(void) const;
+    DrawProjGroup* getPGroup(void) const;
     double getRotateAngle();
 
     /// returns the type name of the ViewProvider
@@ -76,6 +76,9 @@ public:
                                const Base::Vector3d& direction, 
                                const bool flip=true) const override;
 
+    virtual double getScale(void) const override;
+
+
 protected:
     void onChanged(const App::Property* prop) override;