code: function (thisAddressBook) {
        return UI.authn.newAppInstance(dom,
          {noun: 'address book', appPathSegment: 'contactorator.timbl.com'}, function (ws, newBase) {
            thisPane.clone(thisAddressBook, newBase, {me: me, div: div, dom: dom})
          })
      }
docs: Reproduction: Spawn a new instance of this app