[Form] [Validator] Form with ArrayAccess and field with property_path=>[key] broken

[lucagtc]

Symfony version(s) affected: 4.4

Description
When form with object $data type ArrayAccess (example Doctrine ArrayCollection) is validate and the field use 'property_path' => '[key]', is generated wrong validation path -> [[key]].

How to reproduce
Create a form with data type ArrayCollection and add field with property_path => '[key]'. Then insert wrong value and validate.

Here a piece of wrong code (in my opinion)

symfony/src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php

Line 103 in 879e68c

$fieldPropertyPath = \is_object($data) ? 'children[%s]' : 'children%s';

[xabbuh]

Can you please check if #37085 fixes this?

[lucagtc]

Yes, this fix solve my problem.

Thank's

[xabbuh]

Thank you for the confirmation. Let's close here then.