Bug: light_rt_spot (CLUSTERED BRANCH) can pass throught noclip with "shadowed" flag

[kiddu25]

Describe the bug

As you can see in the video, light_rt shadows and light can pass through a nodraw wall. For some reason, in my test map I can't reproduce this behavior 100% without the nodraw.

https://www.youtube.com/watch?v=AzUTRh2zcN0&ab_channel=kiddu (original map : nodraw can pass on a nodraw wall)

https://www.youtube.com/watch?v=wX2oUbsl-vY&ab_channel=kiddu (test map : light can pass trought nodraw)

light_test.zip (for use the map I advise to mount portal1/portal 2 and half-life 2)

To Reproduce

1.watch video and test map 2. see what happen

Issue Map

1. watch video
2. open map and see what happen

Expected Behavior

light, shadow can through a nodraw wall

Operating System

windows 10