Blue dot (current location) circle is overlapping with beta4 fill-extrusion-flood-light

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**mapbox-gl-js version**: v3.0.0-beta.4

**browser**: Chrome, Firefox, Safari

### Steps to Trigger Behaviour:

Run your app with Mapbox v3.0.0-beta.4 release. The app should have blue dot (current user position).
Blue dot - it's rendered using Mapbox SDK: symbol layer + circle layer.

### Problem:

Flood light from extrusions is overlapping blue dot.

### Demonstration:
With extrusion flood light on:

With extrusion flood light off:

Code snippet for a extrusions layer:
```
// This layer is for extruded rooms
map.addLayer({
'filter': ['any',
['==', 'featureClass', FeatureClass.ROOM_EXTRUSION]
],
'id': MI_ROOMS_LAYER,
'type': 'fill-extrusion',
'slot': 'middle',
'source': MI_GEOJSON_SOURCE,
'paint': {
'fill-extrusion-color': ['get', 'fillColor'],
'fill-extrusion-opacity': extrusionOpacity,
'fill-extrusion-height': ['get', 'height'],
'fill-extrusion-ambient-occlusion-ground-attenuation': 1,
'fill-extrusion-flood-light-color': '#FFFFFF',
'fill-extrusion-flood-light-ground-radius': 10,
'fill-extrusion-flood-light-intensity': 0.3,
'fill-extrusion-flood-light-ground-attenuation': 1,
'fill-extrusion-ambient-occlusion-intensity': 0
}
});
```
Code snippets for blue dot layer:
```
map.addLayer({
'id': MI_POSITION_FILL_LAYER,
'filter': ['all', ['==', '$type', 'Polygon']],
'type': 'fill',
'source': MI_POSITION_SOURCE,
'paint': {
'fill-color': ['get', 'fillColor'],
'fill-opacity': ['to-number', ['get', 'fillOpacity']]
}
});

map.addLayer({
'id': MI_POSITION_CIRCLE_LAYER,
'filter': ['all', ['==', '$type', 'Point']],
'type': 'circle',
'source': MI_POSITION_SOURCE,
'paint': {
'circle-color': ['get', 'fillColor'],
'circle-radius': ['get', 'radius'],
'circle-opacity': ['get', 'fillOpacity'],
'circle-stroke-width': ['get', 'strokeWeight'],
'circle-stroke-color': ['get', 'strokeColor'],
'circle-stroke-opacity': ['get', 'fillOpacity'],
'circle-pitch-alignment': 'map',
'circle-pitch-scale': 'viewport'
}
});
```

When I comment out/remove 'fill-extrusion-flood-light-intensity': 0.3', the problem disappears, but I cannot use light effects.
I also tried to place blue-dot layer on top of everything.

No source files or tests are named. Reproduce the issue in Mapbox GL JS v3.0.0-beta.4 with a fill-extrusion layer using flood-light settings and the blue-dot circle layer; done means the blue dot no longer overlaps the flood light while the light effect remains enabled.

Written by the indexing model from the issue text.