Csharp System.Text.Json：反序列化返回为空数组的字典时出错

I am not sure at all if this is how we are supposed to do this，但至少它有效:

(请注意，我简化了示例)

using System;
using System.Text.Json;
using System.Text.Json.Serialization;
using System.Collections.Generic;
                    
public class Program
{
    public static void Main()
    {
        var emptyJson = 
            """
{
    "values": []
}
""";
    
        var nonEmptyJson = 
            """
{
    "values": {
        "key1": "value1",
        "key2": "value2"
    }
}
""";
        
        var emptyResult = JsonSerializer.Deserialize<Model>(emptyJson);
        var nonEmptyResult = JsonSerializer.Deserialize<Model>(nonEmptyJson);
        
        emptyResult.Dump();
        nonEmptyResult.Dump();
    }
}

public class Model
{
    [JsonPropertyName("values")]
    [JsonConverter(typeof(MySpecialConverter))]
    public Dictionary<string,string> Values {get;set;} = new();
}

public class MySpecialConverter : JsonConverter<Dictionary<string,string>>
{
// Omitted writer for brevity. 
    public override void Write(Utf8JsonWriter writer,
            Dictionary<string,string> dictionaryValue,
            JsonSerializerOptions options) => throw new NotSupportedException();
            
    public override Dictionary<string,string> Read(ref Utf8JsonReader reader,
            Type typeToConvert,
            JsonSerializerOptions options)
            {
// Check for '"booking/index": []' - case:
                if (reader.TokenType == JsonTokenType.StartArray)
                {
                  reader.Read();
                  return new Dictionary<string,string>();
                }
// Otherwise pass-through to default converter.
                var converter = (JsonConverter<Dictionary<string,string>>)options.GetConverter(typeof(Dictionary<string,string>));
                return converter.Read(ref reader, typeToConvert, options);
            }
}

= 小提琴 : https://dotnetfiddle.net/J6NbVE>

For your reference:
I based this upon this article: How to write custom converters for JSON serialization (marshalling) in .NET