Passing variable as ISO 8601 string generates invalid text output

[madmox]

If I use a JsonElement object as the template parameters and set a variable as a ISO 8601 string, it generates an invalid output:

var handlebars = Handlebars.Create();
handlebars.Configuration.UseJson();

string template = @"{{Foo}}";
JsonElement parameters = JsonSerializer.SerializeToElement(new { Foo = "2023-05-05" });
HandlebarsTemplate<object, string> compiledTemplate = handlebars.Compile(template);
string output = compiledTemplate(parameters);

Console.WriteLine(output); // "2023-05-05T00:00:00.0000000" instead of "2023-05-05"

Incriminated portion of code is here : JSON strings should always be parsed as C# strings, because there is no unique string representation of the other types (DateTime, DateTimeOffset, Guid) and this necessarily results in altered textual representations in some cases. As a fix, I would just remove lines 40 to 47 in the previous method.

If someone uses 2023-05-05 as a username in my application, I don't want it to show as 2023-05-05T00:00:00.0000000 in the emails I send to him... Same is true if I register a key as C5B9CB1A-1370-4215-ABA1-560DB55B575A, I don't want it to be written as c5b9cb1a-1370-4215-aba1-560db55b575a (case might be sensitive!).