Crash when joining a world that has torches

[Wunka]

Steps to Reproduce and Observed Behavior

On commit df0a059 I get this error while a World is loading:

thread 17117 panic: integer overflow
/home/Wunka/Documents/Cubyz/master/src/renderer/chunk_meshing.zig:538:36: 0x17f844b in getLight (Cubyz)
      val += cornerVals[dx][dy][dz]*@as(LightVector, @splat(integerWeight));
                                   ^
/home/Wunka/Documents/Cubyz/master/src/renderer/chunk_meshing.zig:386:26: 0x18ef051 in finish (Cubyz)
   const light = getLight(parent, .{face.position.x, face.position.y, face.position.z}, face.blockAndQuad.texture, face.blockAndQuad.quadIndex);
                         ^
/home/Wunka/Documents/Cubyz/master/src/renderer/chunk_meshing.zig:1282:25: 0x188677e in finishData (Cubyz)
  self.opaqueMesh.finish(self, &lightList, &lightMap);
                        ^
/home/Wunka/Documents/Cubyz/master/src/renderer/chunk_meshing.zig:1479:18: 0x17fc764 in finishNeighbors (Cubyz)
  self.finishData();
                 ^
/home/Wunka/Documents/Cubyz/master/src/renderer/chunk_meshing.zig:1153:23: 0x175d3a1 in generateMesh (Cubyz)
  self.finishNeighbors(lightRefreshList);
                      ^
/home/Wunka/Documents/Cubyz/master/src/renderer/chunk_meshing.zig:829:32: 0x1833d8d in generateLightingData (Cubyz)
      neighborMesh.generateMesh(&lightRefreshList);
                               ^
/home/Wunka/Documents/Cubyz/master/src/renderer/mesh_storage.zig:891:28: 0x1832fb7 in run (Cubyz)
  mesh.generateLightingData() catch mesh.deferredDeinit();
                           ^
/home/Wunka/Documents/Cubyz/master/src/utils.zig:920:20: 0x16ce373 in run (Cubyz)
    task.vtable.run(task.self);
                   ^
/home/Wunka/Documents/Cubyz/master/compiler/zig/lib/std/Thread.zig:558:13: 0x1609361 in callFn__anon_63101 (Cubyz)
            @call(.auto, f, args);
            ^
/home/Wunka/Documents/Cubyz/master/compiler/zig/lib/std/Thread.zig:830:30: 0x15625dd in entryFn (Cubyz)
                return callFn(f, args_ptr.*);
                             ^
???:?:?: 0x7f0c7cc9698a in ??? (/usr/lib/libc.so.6)
???:?:?: 0x7f0c7cd1a9cb in ??? (/usr/lib/libc.so.6)
Experienced time travel. Current time: -4732 Last time: -4731
./debug_linux.sh: line 31: 17113 Aborted                    (core dumped) ./zig-out/bin/Cuby

[IntegratedQuantum]

Something broke for unaligned models, like torches.

[Wunka]

Here the seed where I got the error: 17542377243944276788