B-spline curves not using radius in procedural

[compso]

Describe the bug
When rendering the attached .usd with the USD procedural it produces an error due to an incorrect number of points on either the curve or the radius parameter

Same data renders fine in hydra render delegate

To Reproduce
Steps to reproduce the behavior:

1. load the attached .usd and render using kick
2. kick -i hair_test.usd -default_nodes all -r 1920 1080
3. you should get a warning like:

00:00:00   238MB WARNING | /Root/RootOffset/g_geometry/groom/hair_test/hair_testShape: could not set ARRAY parameter "id"
...
00:00:00   258MB WARNING |      [curves] /Root/RootOffset/g_geometry/groom/hair_test/hair_testShape: invalid radius specification: found 3135, expected 1, 285 or 2565 (constant, uniform or varying); just using the first

Expected behavior
Curves render with correct radius

Screenshots
Hydra

Arnold Procedural

Used Software Versions

• Arnold: 6.2.1.0

hair_test.zip