Only first page of comments load when viewing user history

When I pull up someone's comment history, either by going to "User Profile" then "Comments" from a context menu, or going to my own history via "My Profile" then "Comments", only the first page of the comment history is loaded. When I scroll down to the bottom, rather than attempting to dynamically load the next set of records, it just ends.

Note that when viewing someone's post history, the dynamic loading/paging behaves as expecting, meaning that more records are loaded when I get to the bottom.

So I'm not sure if this is either expected behavior (due to limitations in the Reddit API, although I have tested similar features in other third-party clients and they do seem to be able to load additional records), or a bug, but I figure I'd report it as I couldn't find another report describing the issue in the case that this is an actual bug.

Start from the User Profile or My Profile Comments history, reproduce the issue by scrolling to the bottom, and compare its paging behavior with post history, where more records load. Trace the comment-history entry point and confirm whether the Reddit API or the client stops after the first page. Done means additional comment records load when the user reaches the bottom.