I've subscribed on my new instance lemmyfly.org to !lemmy_support@lemmy.ml.
One post (by me) on there (postfix issues, possible to use sendgrid?) has 4 comments.
But when I click on that post from my own server timeline, it shows an earlier state of the post with 0 comments.
Maybe I don't understand the federation well enough yet, but shouldn't the state of a post be similar no matter from which instance you look at it ?
edit: I see different comments on this post when looking at it direct on lemmy.ml/c/lemmy_support and on https://lemmyfly.org/c/lemmy_support@lemmy.ml
My own comment posted from lemmyfly.org, does not show under this post at lemmy.ml, only on my own instance ? This is why I edit the main post to write this. Is it supposed to work like this ?
Old comments aren't synced, so you'll only see new comments.
I think you can also get it when you specifically search for that comment.
You'll for sure get it if someone replays to that comment.
I've had some success with searching for specific comment URLs indeed. The reply part I don't know for sure.