Lights=None in RoR.cfg crash air vehicles loading

[cryham]

Took me a while to find out.
So if I set Lights=None (fastest) in RoR.cfg then trying to get a new air vehicle (airplane, jet, helicopter etc) will crash RoR, not saying much in log.
Checked on recent dev builds, on Debian 12, amdgpu.

[ohlidalp]

Oops. The problem will be either in ActorSpawner.cpp ProcessWings() or GfxActor.cpp UpdateFlares()

[ohlidalp]

SimData.h, line 636 is a suspect - not initialized pointer.

[cryham]

I've debugged the crash on my ogre-14 branch (hope it's the same) and it is
in source/main/physics/ActorSpawner.cpp here:

    //wing closure
    if (m_first_wing_index!=-1)
    {
        if (m_actor->ar_autopilot != nullptr) 
        {
            m_actor->ar_autopilot->setInertialReferences(
                & m_actor->ar_nodes[m_airplane_left_light],
                & m_actor->ar_nodes[m_airplane_right_light],  // <-- nullptr
                m_actor->m_fusealge_back,
                & m_actor->ar_nodes[m_actor->ar_camera_node_pos[0]]
                );
        }

2nd argument for setInertialReferences( is null.
If I comment out this call, then it works, and I can fly airplanes etc.