Fixes #2876 Allow the contents of a JsonToken.Raw token to be returne…

Src/Newtonsoft.Json.Tests/Serialization/JsonSerializerTest.cs

@@ -8213,5 +8213,18 @@ private static int GetDepth(JToken o)
 
             return depth;
         }
+
+        [Test]
+        public void RoundTripDecimalContainerWithConverter()
+        {
+            DecimalContainer container = new DecimalContainer
+            {
+                Value = 200.100M
+            };
+
+            JToken wrapped = JToken.FromObject(container);
+            DecimalContainer newContainer = wrapped.ToObject<DecimalContainer>();
+            Assert.AreEqual(container.Value, newContainer.Value);
+        }
     }
 }

Src/Newtonsoft.Json.Tests/TestObjects/DecimalContainer.cs

@@ -0,0 +1,8 @@
+namespace Newtonsoft.Json.Tests.TestObjects
+{
+    [JsonConverter(typeof(DecimalContainerConverter))]
+    public class DecimalContainer
+    {
+        public decimal Value { get; set; }
+    }
+}

Src/Newtonsoft.Json.Tests/TestObjects/DecimalContainerConverter.cs

@@ -0,0 +1,33 @@
+#nullable enable
+using System;
+
+namespace Newtonsoft.Json.Tests.TestObjects
+{
+    public class DecimalContainerConverter : JsonConverter
+    {
+        public override bool CanConvert(Type objectType) => true;
+
+        public override object? ReadJson(JsonReader reader, Type objectType, object? existingValue, JsonSerializer serializer)
+        {
+            reader.Read();
+            var value = reader.ReadAsString();
+            var result = new DecimalContainer
+            {
+                Value = decimal.Parse(value ?? "0"),
+            };
+
+            reader.Read();
+            return result;
+        }
+
+        public override void WriteJson(JsonWriter writer, object? value, JsonSerializer serializer)
+        {
+            var x = (DecimalContainer)value!;
+            writer.WriteStartObject();
+            writer.WritePropertyName("D");
+            writer.WriteRawValue(x.Value.ToString());
+            writer.WriteEndObject();
+        }
+    }
+}
+#nullable restore

Src/Newtonsoft.Json/JsonReader.cs

@@ -480,6 +480,7 @@ private JsonContainerType Peek()
                 case JsonToken.Null:
                 case JsonToken.EndArray:
                     return null;
+                case JsonToken.Raw:
                 case JsonToken.String:
                     return (string?)Value;
             }