[Autocomplete] Fails to load provided options if `multiple=true` on submit

[norkunas]

The problem is in these lines:

ux/src/Autocomplete/src/Form/AutocompleteEntityTypeSubscriber.php

Lines 56 to 58 in 7a2eda6

	$options['choices'] = $options['em']->getRepository($options['class'])->findBy([
	$options['id_reader']->getIdField() => $data['autocomplete'],
	]);

Doctrine entity repository findBy method doesn't support finding entities by array so it always returns empty array.
Okay it supports, but only when using plain ID's, but doesn't support when using ID value objects like Symfony uid.