LiveWire -Komponente hat Daten verloren

public $selected_id;

public function getItemsProperty()
{
    return Stock::select('item_id', 'warehouse_id')->groupBy('item_id', 'warehouse_id')->get();
}

public function render()
{
    return view('some-view', [
        'items' => $this->items,
    ])
}
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