Bug: External file can't be referenced twice in the config.json

[arnaudfnr]

Consider this config.json (full file available here:

{
"meteto_rain": "meteo.pluv",
"meteo_wind": "meteo.vent"
}

The folllowing error isn returned by Coordo:

  File "/usr/local/dev/14_Data4Trees/backend/.venv/lib/python3.13/site-packages/coordo/map/__init__.py", line 37, in handle_request
    return self.get_maplibre_style()
           ~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/dev/14_Data4Trees/backend/.venv/lib/python3.13/site-packages/coordo/map/__init__.py", line 67, in get_maplibre_style
    sources, layer = layer.to_maplibre(self._base_path)
                     ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/usr/local/dev/14_Data4Trees/backend/.venv/lib/python3.13/site-packages/coordo/map/datapackage.py", line 37, in to_maplibre
    data = self.get_data(base_path=base_path)
  File "/usr/local/dev/14_Data4Trees/backend/.venv/lib/python3.13/site-packages/coordo/map/datapackage.py", line 82, in get_data
    df = package.read_resource(
        self.resource,
    ...<2 lines>...
        self.groupby,
    )
  File "/usr/local/dev/14_Data4Trees/backend/.venv/lib/python3.13/site-packages/coordo/datapackage/package.py", line 154, in read_resource
    relation = conn.sql(query_str)
_duckdb.BinderException: Binder Error: Ambiguous reference to table "meteo" (duplicate alias "meteo", explicitly alias one of the tables using "AS my_alias")

Strangely, other external data like dens_bois and dens_bois_mort are referenced in several formulas with no error.