ABP SystemTextJson inheritance response problem

[totpero]

Hi,
Related to this #6884 I have create different branch with this issue https://github.com/totpero/aspnetboilerplate-demo/tree/text-json
I have this demo classes structure:

    public class TestResutDto:EntityDto
    {
        public DateTime TestDate { get; set; }
        public IEnumerable<ISubItem> SubItems { get; set; }
    }

    public interface ISubItem
    {
        public int Prop1 { get; set; }
        public bool Prop2 { get; set; }
    }

    public class SubItemModel1 : ISubItem
    {
        public int Prop1 { get; set; }
        public bool Prop2 { get; set; }
        public int PropModel1Prop1 { get; set; }
        public bool PropModel1Prop2 { get; set; }
    }

    public class SubItemModel2 : ISubItem
    {
        public int Prop1 { get; set; }
        public bool Prop2 { get; set; }
        public int PropModel2Prop1 { get; set; }
        public bool PropModel2Prop2 { get; set; }
    }

And this call in my AppService method:

public TestResutDto TestMethod()
{
    var result = new TestResutDto
    {
        Id = 1,
        TestDate = DateTime.Now,
        SubItems = new ISubItem[] { 
            new SubItemModel1 { 
                Prop1 = 1,
                Prop2 = true, 
                PropModel1Prop1 = 100, 
                PropModel1Prop2 = false
            },
            new SubItemModel2 {
                Prop1 = 2,
                Prop2 = false,
                PropModel2Prop1 = 200,
                PropModel2Prop2 = true
            }
        }
    };
    return result;
}

I try to switch to Microsoft SystemTextJson in MVC app using this configurations:

.AddJsonOptions(options =>
	{
		options.JsonSerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;
		options.JsonSerializerOptions.Converters.Add(new CultureInvariantDecimalJsonConverter());
		options.JsonSerializerOptions.Converters.Add(new CultureInvariantNullableDecimalJsonConverter());
		options.JsonSerializerOptions.Converters.Add(new CultureInvariantDoubleJsonConverter());
		options.JsonSerializerOptions.Converters.Add(new CultureInvariantNullableDoubleJsonConverter());

		options.JsonSerializerOptions.Converters.Add(new DateOnlyJsonConverter());

		options.JsonSerializerOptions.Converters.Add(new AbpNullableDateTimeConverter());
		options.JsonSerializerOptions.Converters.Add(new AbpDateTimeConverter());
	})

The output json result when I call this method in js is:

{
	"result": {
		"testDate": "2024-02-13T14:15:43.3535494+02:00",
		"subItems": [
			{
				"prop1": 1,
				"prop2": true
			},
			{
				"prop1": 2,
				"prop2": false
			}
		],
		"id": 1
	},
	"targetUrl": null,
	"success": true,
	"error": null,
	"unAuthorizedRequest": false,
	"__abp": true
}

There are missing the implementation class properties. The SystemTextJson return only the Intefrace properties.

If I switch to the old NewtonsoftJson configurations like this:

 .AddNewtonsoftJson(options =>
 {
     options.SerializerSettings.ContractResolver = new AbpCamelCasePropertyNamesContractResolver();
     options.SerializerSettings.Converters.Add(new CultureInvariantDecimalConverter());
     options.SerializerSettings.Converters.Add(new CultureInvariantDoubleConverter());

     options.SerializerSettings.Converters.Add(new DateOnlyJsonConverter());

 })

the json result is:

{
	"result": {
		"testDate": "2024-02-13T14:17:26.693521+02:00",
		"subItems": [
			{
				"prop1": 1,
				"prop2": true,
				"propModel1Prop1": 100,
				"propModel1Prop2": false
			},
			{
				"prop1": 2,
				"prop2": false,
				"propModel2Prop1": 200,
				"propModel2Prop2": true
			}
		],
		"id": 1
	},
	"targetUrl": null,
	"success": true,
	"error": null,
	"unAuthorizedRequest": false,
	"__abp": true
}

How to maintain the same behavior like NewtonsoftJson in Microsoft SystemTextJson migration?
Thanks