WhenMissing doesn't work in Nested rules.

[bouledepate]

Case: Nested parameters should only be validated if the client specifies them in the request.

I have the following declared validation rules.

'regulations' => new Nested(
    rules: [
        'is_one_time' => new BooleanType(
            message: 'Property must be a boolean.',
            skipOnEmpty: new WhenMissing()
        )
    ],
    skipOnEmpty: new WhenMissing()
)

Problem:
When I pass an empty body "regulations", I get a parameter validation error. This should not happen, because the parameter has a condition: "validation must be skipped if the attribute is missing", or WhenMissing.

User cases:

• I, as a client, make a request with an empty body. As a result, nothing happens, I get success.

{
    "service": "service",
    "amount": 200
}

• I, as a client, make a request with an empty "regulations". As a result, nothing happens, I get success.

{
    "service": "service",
    "amount": 200,
    "regulations": {}
}

This case does not work. Actually, I get a validation error that "is_one_time must be boolean".

• I, as a client, make a request with an incorrect value "regulations.is_one_time", I get a validation error.

{
    "service": "service",
    "amount": 200,
    "regulations": {
        "is_one_time": ""
    }
}

• I, as a client, make a request with a correct value "regulations.is_one_time", I get success.

{
    "service": "service",
    "amount": 200,
    "regulations": {
        "is_one_time": true
    }
}

Selected case is not work.

Additional info

Q	A
Version	2.1.0
PHP version	8.3
Operating system	Ubuntu 24.04