Model is not visible behind a fill-extrusion layer when ordered below it in the map

Nobody has claimed this yet.

Model layers are visible behind a fill-extrusion when the model layer is ordered below fill-extrusion layer. However a model layer is not visible behind a fill-extrusion layer when the model layer is ordered above the fill-extrusion layer.

This causes this effect


In the example I have the opacity of both fill-extrusions layers at 0.3. The red fill-extrusion is ordered above the model layer in the map, whereas the blue fill-extrusion layer is ordered below the model layer.

I have a minimal example here - https://jsbin.com/rutihabiki/edit?html,output

**mapbox-gl-js version**: Latest (3.10.0)

**browser**: Chrome

### Expected Behaviour

Is that the model is visible behind the fill-extrusions when they don't have an opacity value of 1.

### Actual Behaviour

Fill extrusion which is placed above the model layer acts correctly.
Fill extrusion which is ordered below the model layer acts incorrectly.

Start with the linked JSBin minimal example in Chrome using mapbox-gl-js 3.10.0, comparing the model and fill-extrusion layer order with both extrusion opacities at 0.3. Trace the rendering path for model and fill-extrusion layers; done means the model remains visible through a partially transparent fill-extrusion regardless of layer order, with a regression test covering both orders.

Written by the indexing model from the issue text.