d95a114377
When using self-service mode and trying to link with a remote matrix room (room not in the same HS as the bridge user), then we need to add the "via" HSs to join the room with, or else it fails. We get it from the "m.space.child" in the "children_state" of the space hierarchy. Co-authored-by: Cadence Ember <cadence@disroot.org> Reviewed-on: https://gitdab.com/cadence/out-of-your-element/pulls/60 Co-authored-by: Elliu <elliu@hashi.re> Co-committed-by: Elliu <elliu@hashi.re>