H3 aggregations with geometries as bbox returns invalid geojson

[mbarbet]

The first coordinate and the last coordinate must be equal :

  "geometry": {
    "type": "Polygon",
    "coordinates": [
      [
        [
          **-123.63288293592632,
          39.00875060353428**
        ],
        [
          -123.6217990424484,
          39.00875060353428
        ],
        [
          -123.6217990424484,
          38.85480898898095
        ],
        [
          **-123.63288293592632,
          38.85480898898095**
        ]
      ]
    ]
  }