@copygirl @Dirk yes, I also get the feeling this would not work in a compliant setup but it seems like a good idea to test this in e.g. a federation test suite.
Maybe @evanprodromou would know how this should work, or would know of someone who might be testing this kind of scenario.
@liaizon @wikipedia @FediverseChick do we have any hint thus far for who is actually behind the FC?