Not sure if bug or feature … depends on one’s view.
Background: When getting an email notification from a post, the “Previous Replies” only include the most recent replies. This can be meaningless (and worse, terribly confusing) if someone is replying to an earlier post in the topic. Paging @techAPJ or other fans of Discourse email hacking.
Reproduce: Have someone reply to your post in a topic later, after other replies have been added to the end of the topic.
Expected Behavior: Get a notification email with the “Previous Replies” starting (below the new post) with the post that reply is replying to.
Actual Behavior: “Previous Replies” is the last N replies in the topic overall, regardless.