Select using modifyQueryUsing relationship based on another field

->live()
->afterStateUpdated(static function (Select $component): void {
    $component
        ->getContainer()
        ->getParentComponent()
        ->getContainer()
        ->getComponent('contact_select')
        ->fill();

->label('Contact')
->key('contact_select')
->lazy()
->relationship(
    name: 'contact',
    titleAttribute: 'firstname',
    modifyQueryUsing: static fn (Get $get, Builder $query) => $query
        ->withoutGlobalScopes()
        ->when($get('client'), function () use ($get) {
            dd($get('client')); // @todo query should restrict based on client.
        }),
)
->getOptionLabelFromRecordUsing(
    static fn (Contact&FullName $record): string => Str::of($record->getAttribute('fullName'))
        ->when($record->client?->exists, static fn (Stringable $string) => $string->append(" ({$record->client?->name})"))
        ->value()
)