ron serialization is incorrect when using Value as input

[wiiznokes]

I'm not sure if this is a bug or expected. Here is a reproducible example:

#[test]
fn minimal_example() {
   
    #[derive(Debug, Clone, Deserialize, Serialize, Default, PartialEq, Eq)]
    struct A {
        x: i32,
    }

    let value_before = A::default();
    let res = ron::ser::to_string_pretty(&Value::serialize(&value_before).unwrap(), ron::ser::PrettyConfig::default()).unwrap();
    let value_after: A = ron::from_str(&res).unwrap();

    assert_eq!(value_before, value_after);
}

The line let value_after: A = ron::from_str(&res).unwrap(); will trigger the panic.

Here is another example:

#[test]
fn minimal_example2() {

    #[derive(Debug, Clone, Deserialize, Serialize, Default, PartialEq, Eq)]
    enum B {
        #[default]
        A,
        B,
        C
    }
   
    #[derive(Debug, Clone, Deserialize, Serialize, Default, PartialEq, Eq)]
    struct A {
        x: i32,
        s: String,
        e: B,
    }

    let value = A::default();

    let res1 = ron::ser::to_string_pretty(&value, ron::ser::PrettyConfig::default()).unwrap();
    let res2 = ron::ser::to_string_pretty(&Value::serialize(&value).unwrap(), ron::ser::PrettyConfig::default()).unwrap();

    println!("{res1}");
    println!("{res2}");

}

---- stdout ----
(
    x: 0,
    s: "",
    e: A,
)
{
    "e": "A",
    "s": "",
    "x": 0,
}