message: Don't mistakenly add `remove-label-faster` when creating a label
diff: @@ -37,7 +37,7 @@ async function removeLabelButtonClickHandler(event: delegate.Event<MouseEvent, H
  async function init(): Promise<void> {
  await api.expectToken();
  - observe('.sidebar-labels .IssueLabel:not(.rgh-remove-label-faster-already-added)', {
  + observe('.js-issue-labels .IssueLabel:not(.rgh-remove-label-faster-already-added)', {
  constructor: HTMLElement,
  add(label) {
  label.classList.add('rgh-remove-label-faster-already-added');
  