How to tag addr:city for multilingual city names

Say a country has 3 spoken languages, which is reflected in its administrative names (example for Casablanca, Morocco, which has name=Casablanca ⵜⴰⴷⴷⴰⵔⵜ ⵜⵓⵎⵍⵉⵍⵜ الدار البيضاء (French, Tamazight and Arabic)).

Which scheme should I follow for addresses:

  1. Using all languages first and then adding each language tag
    addr:city=Casablanca ⵜⴰⴷⴷⴰⵔⵜ ⵜⵓⵎⵍⵉⵍⵜ الدار البيضاء
    addr:city:fr=Casablanca
    addr:city:zgh=ⵜⴰⴷⴷⴰⵔⵜ ⵜⵓⵎⵍⵉⵍⵜ
    addr:city:ar=الدار البيضاء

  2. Not using addr:city at all and only using each language tag
    addr:city:fr=Casablanca
    addr:city:zgh=ⵜⴰⴷⴷⴰⵔⵜ ⵜⵓⵎⵍⵉⵍⵜ
    addr:city:ar=الدار البيضاء

I’ve only been tagging addr:city=Casablanca ⵜⴰⴷⴷⴰⵔⵜ ⵜⵓⵎⵍⵉⵍⵜ الدار البيضاء for everything because there’s no community consensus yet here (and a very small community), but I was wondering if it was correct to set 3 languages in a single address. Thanks in advance.