So all the demos show that if you click on the backlink, that note will appear in the main pain. The help even says this:
By default, when you click something, it will open in the active pane. The active pane is marked with highlighted bar under the title, and its title is more visible than the inactive panes.
When I click on the backlink nothing happens. I can right-click and open in a new pane, but not a regular click.