How to delete/undo annotations saved via Ubiquity with Save command?

As advertised, when I issued the edit-page command in Ubiquity, made edits and then issued the save command, every time I load that page, my changes appear. I now want to go back to loading the page as the web page designer intended it to appear. How do I go back to the state that existed before I made my edits and saved them to an annotation? I remember seeing something about annotations somewhere, but a search of the mozilla forums and MozillaZine for "annotation" turns up nothing.