superset_config.py when active another language crashes: Cannot read properties of undefined (reading 'flag')

[hermesalvesbr]

Hi there,

Thanks for your docker image! I'm using :latest version with postgres.

LANGUAGES = {
    "en": {"flag": "us", "name": "English"},
    "es": {"flag": "es", "name": "Spanish"},
    "pt": {"flag": "pt", "name": "Portuguese"},
    "pt_BR": {"flag": "br", "name": "Brazilian Portuguese"},
}

I put this languages in my superset_config.py but show me this console error:

I need to do something to work? Or is a bug?