I found a way to get around this by creating two separate bookmarklets on my browser.
Each bookmarklet links to a different notebook. In this case, evn links to my preferred notebook, while evn2 links to an empty notebook. By clicking on evn2 and, right after that, clicking back on evn, that causes the note list to clear and refresh under my preferred notebook.
I know, it's not the best solution, but until they implement a Refresh button, this is the best I could come up with.