[FeatureName.display_name] What's its purpose?

[rik]

Only definition we've found so far:

A statement expressing if a feature name is to be displayed in certain display settings or not. Indication: Boolean. A True value is an indication that the name is intended to be displayed. Remarks: Where it is allowable to encode multiple instances of feature name for a single feature instance, only one feature name instance can indicate that the name is to be displayed (display name set to True).

• This definition does not mention language making it unclear what restrictions apply, see https://github.com/betagouv/SPPNautInterface/issues/227
• "to be displayed in certain display settings" Can we have a few examples of those display settings?
• Can display_name only be set on a name in english or any language?
• "A True value is an indication that the name is intended to be displayed." In what scenario would a name never be intended to be displayed and yet exists in the dataset?
• "Where it is allowable to encode multiple instances of feature name for a single feature instance" This implies that some feature instances can only have one feature name. Any examples of those restrictions? And is it one feature name or one feature name per language?