Game aborts while configuring "Starting Grid" (AI opponents)

[Apteryks]

Hello,

If I try to configure the AI opponents (different cars, different colors, etc), the game aborts with a failed assert:

$ vdrift -verbose
INFO: Multi-processor system detected.  Run with -multithreaded argument to enable multithreading (EXPERIMENTAL).
INFO: Starting VDrift: 1970-01-01-full, Revision: , O/S: Unix
INFO: Home directory: /home/maxim
INFO: Settings file: /home/maxim/.vdrift/VDrift.config
INFO: Data directory: /gnu/store/j3qzczq7hr3xpjp8n89py0d7q8xwp57j-vdrift-2014-10-20-0.120ae28/share/games/vdrift/data
      DATA_DIR: /gnu/store/j3qzczq7hr3xpjp8n89py0d7q8xwp57j-vdrift-2014-10-20-0.120ae28/share/games/vdrift/data
INFO: Temporary directory: /home/maxim/.vdrift/tmp
INFO: Log file: /home/maxim/.vdrift/log.txt
INFO: Request OpenGL 3.3 Core Profile context.
INFO: Disabling antialiasing
INFO: Enabling vertical synchronization.
INFO: Video card information:
      GL Vendor: AMD
      GL Renderer: AMD Radeon Graphics (radeonsi, raphael_mendocino, LLVM 15.0.7, DRM 3.57, 6.10.13)
      GL Version: 4.6 (Core Profile) Mesa 24.0.4
      Texture units: 32
      Maximum texture size: 16384
INFO: Loading /gnu/store/j3qzczq7hr3xpjp8n89py0d7q8xwp57j-vdrift-2014-10-20-0.120ae28/share/games/vdrift/data/shaders/gl3/deferred.conf...
INFO: Loaded /gnu/store/j3qzczq7hr3xpjp8n89py0d7q8xwp57j-vdrift-2014-10-20-0.120ae28/share/games/vdrift/data/shaders/gl3/deferred.conf
INFO: GL3 initialization successful
INFO: 2 joysticks found:
INFO:     0 Pro Controller
INFO:     1 Pro Controller (IMU)
INFO: Loading car controls from: /home/maxim/.vdrift/controls.config
INFO: Obtained audio device:
      Frequency: 44100
      Format: 32784
      Bits per sample: 16
      Channels: 2
      Silence: 0
      Samples: 1024
      Size: 4096
INFO: Sound initialization successful
INFO: Loaded fonts successfully
INFO: Loaded GUI successfully
INFO: Number of force feedback devices: 1
INFO: Loading track from path: /gnu/store/j3qzczq7hr3xpjp8n89py0d7q8xwp57j-vdrift-2014-10-20-0.120ae28/share/games/vdrift/data/tracks/.room
INFO: Loaded surfaces file, 2 surfaces.
INFO: No roads loaded. Skip loading lap timing sectors. Lap timing will not be possible.
INFO: Car loading was successful: CT CT
INFO: Car loading was successful: CO CO
INFO: Car loading was successful: CT CT
ERROR: Constant force feedback not supported: Failed loading udev_device_get_action: /gnu/store/f819ka0sh577hmrqsy6rvsln5jya78ya-sdl2-2.30.1/lib/libSDL2-2.0.so.0: undefined symbol: _udev_device_get_actionFailed to load "CO.car" from:
       /home/maxim/.vdrift/cars/CT
       /gnu/store/j3qzczq7hr3xpjp8n89py0d7q8xwp57j-vdrift-2014-10-20-0.120ae28/share/games/vdrift/data/cars/CT
       /gnu/store/j3qzczq7hr3xpjp8n89py0d7q8xwp57j-vdrift-2014-10-20-0.120ae28/share/games/vdrift/data/carparts
       /gnu/store/j3qzczq7hr3xpjp8n89py0d7q8xwp57j-vdrift-2014-10-20-0.120ae28/share/games/vdrift/data/trackparts
ERROR: Failed to load car config: CT/CO
vdrift: src/game.cpp:1244: void Game::UpdateCarSpecList(GuiOption::List&): Assertion `car_dynamics.size() > 0' failed.
Abandon

To reproduce the above, here's the steps:

1. Launch VDrift
2. Click on 'Race' menu
3. Configure a number of AI opponents, e.g. 5 of them
4. Click 'Starting Grid' on that same screen
5. Select a different car for player 2. Press 'Back'.
6. Attempt to configure player 3 -> Observe crash

I'm using the latest current game data (revision 1463) and vdrift source commit (120ae28).