m.room.name's name field is marked as required but is described as possibly absent

[zecakeh]

Link to problem area: https://spec.matrix.org/v1.8/client-server-api/#mroomname

Issue
The schema of the event says that the name field is required. The description of the event says that the same field can be "absent, null, or empty".

Expected behaviour
It should either be required or not.

For context, Synapse doesn't accept that a client sends this event if the field is not a string.

[richvdh]

The description of the event says that the same field can be "absent, null, or empty".

I'm not sure it says exactly that?

As with all Matrix events, implementations have to behave sensibly when they receive a malformed event. The text I think you are referring to provides some guidance on what implementations should do if they receive an m.room.name event which is (incorrectly) missing a name property.

[zecakeh]

Ah indeed, I did not understand it like that.

[richvdh]

Certainly the wording could be clearer.