use correct? face

i am not entirely sure that null-face shouldn't crash at all, but if it wouldn't, i believe we should use face with ordinal 0

src/main/java/me/jellysquid/mods/sodium/client/render/pipeline/BlockRenderer.java

@@ -107,7 +107,7 @@ private void renderQuadList(IBlockAccess world, IBlockState state, BlockPos pos,
             // TODO: Does null mean we should treat it as non-axis-aligned?
             EnumFacing quadFace = quad.getFace();
             if (quadFace == null) {
-                quadFace = EnumFacing.UP;
+                quadFace = EnumFacing.DOWN;
             }
             lighter.calculate((ModelQuadView) quad, pos, light, cullFace, quadFace, quad.shouldApplyDiffuseLighting());