[quote] Crappy chat quote implementation.

modules/ChatQuotes/Json/NullToEmptyObjectValueProvider.cs

@@ -0,0 +1,26 @@
+using System.Reflection;
+using Newtonsoft.Json.Serialization;
+using Telegram.Bot.Types;
+
+namespace West.TelegramBot.ChatQuotes.Json;
+
+public class NullToEmptyStringValueProvider : IValueProvider
+{
+    private readonly PropertyInfo _memberInfo;
+    public NullToEmptyStringValueProvider(PropertyInfo memberInfo)
+    {
+        _memberInfo = memberInfo;
+    }
+
+    public object? GetValue(object target)
+    {
+        var result = _memberInfo.GetValue(target);
+        if (_memberInfo.PropertyType == typeof(Message) && result == null) result = new object();
+        return result;
+    }
+
+    public void SetValue(object target, object value)
+    {
+        _memberInfo.SetValue(target, value);
+    }
+}