Task::updateTags

private function updateTags(array $fields): array
{
	$taskData = $this->getFullTaskData();
	if (!$taskData)
	{
		return $fields;
	}

	if (!array_key_exists('TAGS', $fields))
	{
		$fields['TAGS'] = $taskData['TAGS'];
	}
	if (!array_key_exists('TITLE', $fields))
	{
		$fields['TITLE'] = $taskData['TITLE'];
	}
	if (!array_key_exists('DESCRIPTION', $fields))
	{
		$fields['DESCRIPTION'] = $taskData['DESCRIPTION'];
	}

	$fields['TAGS'] = $this->parseTags($fields);

	return $fields;
}