I believe so. If I understood it correctly, you are really just commenting on a copy of the original post on sh.itjust.works so the original comment is on sh.itjust.works and needs to federate from there.
But I am likely wrong, so wait for someone else to respond.
This comment thread that happened today only has the parent comment made by someone else, not mine that I made right after: https://beehaw.org/comment/317451
I believe so. If I understood it correctly, you are really just commenting on a copy of the original post on sh.itjust.works so the original comment is on sh.itjust.works and needs to federate from there.
But I am likely wrong, so wait for someone else to respond.
I’m testing. In conclusion, it is not possible to see comments from defederated instances’ users on federated instances’ threads.