Renderman in Houdini: how to export "vertex point" attribute?

[Lex-DRL]

The question is in the title.

How do I force Houdini to export some point attribute as "vertex point" into rib, not as "varying point"?

I've got a simple setup scene to test how Houdini can export rest positions for renderman shaders:

untitled1.hip

The setup is simple:

1. I've created the torus
   
2. saved it's point positions to "rest" attribute
   
3. moved the torus a little up
   
4. using "Attribute" node, converted Houdini attribute to Renderman's "vertex point" attribute
   
5. and, finally, applied "polygons as subdivisions" attribute to the object
   

If I render this, I get what I expected:

Smooth torus, slightly moved up.

Now, what I expect is "rest" attribute should be smoothed the same as P is. And therefore I can get smooth rest positions for furter shading.

To check this, I'm creating a simple shader which displaces points to the rest positions. So I should get smooth torus positioned at the origin. Right?

But here's what I get instead:

Yes, this is torus. And yes, it's positioned at the origin. But no, it's not smooth.

I've exported the rib to see how it's generated. And here's what I saw there:

While:

I've got Houdini 12.5.427, running under 64-bit Win7.

Am I missing something, or it's a bug?