[Form] Some form errors are no longer shown since 3.4.41

[ostrolucky]

Symfony version(s) affected: 3.4.41

Description
Since b819d94 some form field errors have been hidden.
How to reproduce
I am able to reproduce when using property_path option set to field to another object and form_rest. Attaching reproducer symfony-demo.zip

Go to http://127.0.0.1:8000/en/admin/post/1/edit and hit submit. Field "author name" should show error, but doesn't. Web profiler toolbar does show form error.

cc @xabbuh

[bendavies]

It's not even as complex as property_path being on another object.
It can just be an field on the current object, but with a different name to the form field. i.e.

->add('amount_closing_balance', MoneyType::class, [
    'property_path' => 'closingBalance',
])

So far I've found the Violation Path is changing:
4.4.8: children[amount_closing_balance].children[amount]
4.4.9: children[closingBalance].children[amount]

And then maybe the ViolationMapper in the Form component can no longer map this path back to the correct field.

[xabbuh]

Thank you for the feedback. I am working on a patch.

[xabbuh]

Can you both confirm that #37085 would fix this issue?

[ostrolucky]

It solves the issue for me

[xabbuh]

@ostrolucky Thank you for the confirmation. 👍