I just noticed something interesting. Hubzilla is smart enough to realize which clone liked something on an ActivityPub post. It is, therefore, possible to like something more than once, once from each clone. And on their side, it shows up that you liked their post from multiple channels.
For those who are not aware, Hubzilla allows you to clone your channel on more than one server. They are synced, so if you post on one, the post appears on the other too. If someone on ActivityPub replies to a particular clone, their reply also gets synced on all of your other clones.
Hubzilla understands this and treats all clones as the same channel. ActivityPub, however, doesn't recognize this and treats them as completely separate channels.
