When you use a bridge like Mautrix facebook, all join events are sent at the time the Matrix room is created, and member history (when people were added and removed) is not synced. But I wanted to do this. Problem? Mautrix does not have an API call to do that.
We could of course do a raw HTTP request by hand, but it would be best to improve Mautrix so it can handle this use case too.
When you use a bridge like Mautrix facebook, all join events are sent at the time the Matrix room is created, and member history (when people were added and removed) is not synced. But I wanted to do this. Problem? Mautrix does not have an API call to do that.
We could of course do a raw HTTP request by hand, but it would be best to improve Mautrix so it can handle this use case too.