🐞 Unicode gets double escaped when serializing to json

[lprichar]

Is there an existing issue for this?

• [X] I have searched the existing issues

Current Behavior

.ToJson() converts ú to \\u00f

Expected Behavior

.ToJson() should convert ú to \u00f

Steps To Reproduce

The following test should pass:

[Test]
public void Test_Unicode_CandidateNames()
{
    var candidateName = new Language("Raúl", "en");
    var candidate = new Candidate(
        "candidate-1",
        new InternationalizedText(new[] { candidateName }),
        string.Empty,
        string.Empty,
        false);

    List<Candidate> candidates = new List<Candidate>
    {
        candidate
    };

    var result = new Manifest(
        "test-manifest",
        ElectionType.general,
        DateTime.Now,
        DateTime.Now,
        new GeopoliticalUnit[] { },
        new Party[] { },
        candidates.ToArray(),
        new ContestDescription[] { },
        new BallotStyle[] { },
        new InternationalizedText(new Language[] { }),
        new ContactInformation("na"));

    var json = result.ToJson();
    Assert.IsTrue(json.Contains("\"value\":\"Ra\\u00fal\""));
}

Environment

- OS:

Anything else?

No response