public UpdateBuildIdCommand::__construct($old, $new)
AJAX command for updating the value of a hidden form_build_id input element on a form. It requires the form passed in to have keys for both the old build ID in #build_id_old
New build id. Type: string File core/lib/Drupal/Cor
public UpdateBuildIdCommand::render()
Old build id. Type: string File core/lib/Drupal/Cor