History::fixBrokenStep

protected function fixBrokenStep(int $step, int $id): bool
{
	$resDelete = HistoryTable::delete($id);
	if ($resDelete->isSuccess())
	{
		$currentStep = $this->loadStep();
		if ($step > $currentStep)
		{
			return true;
		}

		return $this->saveStep(max(--$currentStep, 0));
	}

	return false;
}