Let’s say I hit submit on a post or reply, and then immediately notice a typo and edit it. Or I accidentally mis-swipe and downvote and then change it to an upvote.
In both cases, do both actions immediately get posted to the feed, or does the Lemmy instance wait a minute and combine (or overwrite) the actions so that only a single action gets published?
It depends. It seems like Lemmy batches up its activity to send to remote instances - so, per instance, it sleeps for a bit, then sends what it has. If both a Create and an Update are in the same batch, Lemmy just sends the Update. If they don’t happen to be in the same batch though, it sends both activities.
(this is outsider observation, not insider knowledge)