Any way to force federation of an existing post from a different instance?

I wanted to chat about Dune 2, but the pinned thread over at !movies@lemm.ee from 13 days ago wasn't federated to this server.

https://lemm.ee/post/25038001

I wound up replying from my lemmy.ml account as a workaround.

Newer posts from !movies@lemm.ee have been federated as normal.