LayerPropertiesNodeRef not working as documented?

See https://www.klayout.de/forum/discussion/1247/renaming-layers-in-python-script#latest

This code does not do what it is supposed to:

```
current_view = pya.LayoutView.current()
i = 1
for layer in current_view.each_layer():
  layer.name = "LAYER" + str(i)
  i += 1
```