May I ask why this FEP is finalized? There haven’t been any implementors (except for Fedify, above?) who have submitted comments about this.I’m attempting to implement Litepub-style relay consumption as per this FEP, and there is no guidance on what state is supposed to be, besides being hardcoded pending when sending the follow, and cancelled when Undoing.

Hi @skavish, do you know about FEP-171b: Conversation Containers?That FEP describes a similar mechanism, where audience is preserved throughout the thread, but Add activity is used instead of inbox forwarding. Conversation containers are used by Hubzilla and Streams (Friendica's successors).@protocol

@Claire, in Feb 2002, you created a topic where you mentioned soft deletes. While this isn't strictly related to Undo(Delete), this FEP recommends thinking of a received Delete as an instruction to invalidate the cache, and re-fetch, which would give you a better answer as to how to handle the received Delete or Undo(Delete).Perhaps this might help.