+ fixes #0002150: [Ctrl]+[Z] is buffered in a non-intuitive way, does not function in 'edit mode'

src/Gui/ViewProviderGeometryObject.h

@@ -104,6 +104,7 @@ private:
     static void dragStartCallback(void * data, SoDragger * d);
     static void dragFinishCallback(void * data, SoDragger * d);
     static void dragMotionCallback(void * data, SoDragger * d);
+    bool m_dragStart;
 
 protected:
     SoMaterial       * pcShapeMaterial;