Allow CMS Author to duplicate a page

See the diagram → in ✨ The status badge should indicate if there are changes to the page Active .

isNew is computed by this heuristic:

  private function contentEntityIsConsideredNew(string $current_entity_label, EntityTypeInterface $entity_type): bool {
    return $current_entity_label == ApiContentControllers::defaultTitle($entity_type);
  }

+

  public static function defaultTitle(EntityTypeInterface $entity_type): TranslatableMarkup {
    return new TranslatableMarkup('Untitled @singular_entity_type_label', ['@singular_entity_type_label' => $entity_type->getSingularLabel()]);
  }

Together, they mean that this code from this issue's MR:

 // Update title and status.
    $duplicate->set('title', $duplicate->label() . ' (Copy)');
    $duplicate->set('status', FALSE);

… will never result in isNew: true for duplicates.

That heuristic was introduced in ✨ The status badge should indicate if there are changes to the page Active 's BE MR. This MR will have to refine that heuristic.

Given @larowlan's work on 📌 Include the preview HTML in the layout controller payload Active , I think he's probably best positioned to review this.