Crash on Pulse with nocull + novis

[slipher]

r_nocull 1
r_novis 1
sv_novis 1
devmap pulse

Then move around a bit and it crashes. I have the pulse_102 version.

It crashes at https://github.com/DaemonEngine/Daemon/blob/2b80fa92df8fb4bbb679be9f99da0d6c9a4a30b3/src/engine/renderer/tr_main.cpp#L1777 when trying to dereference the invalid shader pointer. The drawSurf struct has a sort of 0 and the rest of the struct seems to be random garbage.

Seems to be unrelated to #1647.