[HOU-1731] candidate lights in subnet

[psanitra]

I`m using one subnet to store geometry and another subnet to store lights. Specifiying candites objects on the ROP with VR_Render_Geo/* works fine, geomery will render. But using the same pattern for lights does not work.

If i set candidate lights to VR_Lights/* will not render any lights, render is black. Using VR_Lights/Spotlight04 works as expected.

[chakarov]

this seems to work in last nightly build, but only if "lightsSubnet/*" is specified in ROP>objects>"Candidate Lights" , does not work when visible children is specified in subnet itself. I've logged it as HOU-1731