message: Fix duplication in `comment-on-draft-pr-indicator`
diff: @@ -5,6 +5,7 @@ import features from '.';
  import onReplacedElement from '../helpers/on-replaced-element';
  function addIndicator(button: HTMLElement): void {
  + button.classList.add('rgh-draft-pr-indicator');
  const preposition = button.textContent!.includes('Add') ? ' to ' : ' on ';
  button.textContent += preposition + 'draft PR';
  }
  @@ -21,7 +22,7 @@ function init(): void {
  if (pageDetect.isPRConversation()) {
  // The button is part of a .js-updatable-content partial
  - void onReplacedElement('#partial-new-comment-form-actions .btn-primary', addIndicator, {runCallbackOnStart: true});
  + void onReplacedElement('#partial-new-comment-form-actions .btn-primary:not(.rgh-draft-pr-indicator)', addIndicator, {runCallbackOnStart: true});
  }
  }
  