UPDATE: Reviewed the specification and this is working as requested. However, I'm leaving it in the backlog as a possible enhancement, since what's written below makes more sense to me now.
When two users create a DM, and one user replies to another, that reply counts as a DM in the user node, Course node, and You node. The expected behavior is that replies within a DM count as Replies between the two users, in the Course node, and in the You node.
UPDATE: Reviewed the specification and this is working as requested. However, I'm leaving it in the backlog as a possible enhancement, since what's written below makes more sense to me now.
When two users create a DM, and one user replies to another, that reply counts as a DM in the user node, Course node, and You node. The expected behavior is that replies within a DM count as Replies between the two users, in the Course node, and in the You node.
Steps to replicate