multiple() is not working in form select

public ?array $data = [];

public function mount(): void
{
    $this->form->fill([
        'start' => now()->subDays(7)->format('Y-m-d'),
        'end' => now()->format('Y-m-d'),
        'salesperson' => null,
    ]);
}

public function form(Form $form): Form
{
    return $form
        ->schema([
            Grid::make(3)->schema([
                DatePicker::make('start'),
                DatePicker::make('end'),
                Select::make('salesperson')
                    ->options(fn () => User::orderBy('created_at', 'desc')->pluck('name', 'id'))
                    ->multiple()
                    ->searchable()
                    ->selectablePlaceholder(),
            ]),
        ])
        ->statePath('data');
}