Return nested arrays in struct from Oracles

[guipublic]

Problem

Playing around with complexe structures returned by Oracle calls, I am getting an error when calling the foo_return() oracle call defined below:

type TReturnElem = [Field; 3];
type TReturn = [TReturnElem; 2];
struct TestTypeFoo {
    a: Field,
    b: [[[Field; 3]; 4]; 2],
    c: [TReturnElem; 2],
    d: TReturnElem,
}
#[oracle(foo_return)]
unconstrained fn foo_return() -> (Field, TReturn, TestTypeFoo) {}

The error is Assertion failed: 'Foreign call result array doesn't match expected size'

Happy Case

No error

Project Impact

None

Impact Context

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Workaround

None

Workaround Description

No response

Additional Context

Related to issue #4561

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