Keep custom normals when mesh editing or instansing with GeoNodes

For (v 4.3 or earler) when you instance any object on your mesh surface or near around it all normals on mesh is resets even if you need to keep your custom normals. The same situation if you cut some mesh part even if this part is small enough or this part is not connected with your mesh. This is a problem because makes more steps of manual mesh optimization after editing mesh with geonodes.