BaseForm::getFirstErrors

public function getFirstErrors()
{
	if (empty($this->errors))
	{
		return [];
	}

	$results = [];
	foreach ($this->errors as $error)
	{
		if (empty($results[$error->getCode()]))
		{
			$results[$error->getCode()] = $error;
		}
	}
	return array_values($results);
}