StatisticController.php

<?php
namespace App\Http\Controllers;

use App\Statistic;

class StatisticController extends Controller
{
    public function stats() {
        $period = request('period');
        $statistics = Statistic::select('columns')
            ->where('Period', $period)
            ->orderBy('PeriodDate');
 
        $statisticsCurrentYear = with(clone $statistics); // falla el resultado final
        $statisticsPreviousYear = with(clone $statistics); // falla el resultado final   
        
        // más código aquí
    }
}