[Live Component][Dependent Form Fields] reference lost during submit cause unwanted insertion instead of update

[fGuix]

Hello,
I'm using the dependent form fields in a project and I noticed I guess a bug.

In my form type, I have this code:

$builder
...
  ->addDependent('shippingAddress', 'shippingSameAsBillingAddress', function (DependentField $field, ?bool $billingSameAsShippingAddress) use ($options) {
      if (false === $billingSameAsShippingAddress) {
          $field->add(UserAddressType::class, [
              'mapped' => false,
              ...
          ]
          );
      }
  });

Notice this is an unmapped field.
During the POST_SET_DATA event, I populate the field with setData() and an entity of class UserAddress. Everything works well.

The problem comes with the submit operation. Doctrine tries to insert a new entity instead of updating the existing.
A. I checked the state of my form data, and in the form PRE_SUBMIT event, the id is still here:

Then I checked in the form SUBMIT event, and the id is lost at this point:

Thus, it tries to create a new userAdress.

B. I tried replacing the dependent field with a classic one, and it works as expected (updating the entity instead of trying to create a new one).

C. might be related to this issue as I didn't get the problem when creating a new one. Only when editing an existing.

[smnandre]

The dependant form field is not an UX package, so i'll do what i can :) Do you think you could create a minimal reproducer that show the bug, so we can have a look ?

[fGuix]

The dependant form field is not an UX package, so i'll do what i can :) Do you think you could create a minimal reproducer that show the bug, so we can have a look ?

Ho! sorry, I didn't notice it was a different repo. Moving to SymfonyCasts/dynamic-forms#34