$parent_guid = $thread_parent[$item['thr-parent-id']]['guid'] ?? '';
$parent_username = $thread_parent[$item['thr-parent-id']]['name'] ?? '';
+ $parent_unknown = $parent_username ? '' : DI::l10n()->t('parent unknown');
$tmp_item = [
'parentguid' => $parent_guid,
'isreplyto' => DI::l10n()->t('is reply to %s', $parent_username),
+ 'isunknown' => $parent_unknown,
+ 'isunknown_label' => DI::l10n()->t('parent is probably private or not federated'),
'template' => $this->getTemplate(),
'type' => implode('', array_slice(explode('/', $item['verb']), -1)),
'comment_firstcollapsed' => false,