Fix deserializing via constructor with ignored base type properties J…

…amesNK/Newtonsoft.Json#2711

src/Argon/Serialization/JsonSerializerInternalReader.cs

@@ -1961,6 +1961,11 @@ List<CreatorPropertyContext> ResolvePropertyAndCreatorValues(JsonObjectContract
 
                             continue;
                         }
+
+                        if (!reader.Read())
+                        {
+                            throw JsonSerializationException.Create(reader, $"Unexpected end when setting {memberName}'s value.");
+                        }
                     }
                     else
                     {

src/Tests/Issues/Issue2708.cs

@@ -0,0 +1,38 @@
+// Copyright (c) 2007 James Newton-King. All rights reserved.
+// Use of this source code is governed by The MIT License,
+// as found in the license.md file.
+
+public class Issue2708 : TestFixtureBase
+{
+    [Fact]
+    public void Test()
+    {
+        string json = @"
+{
+  ""Name"": ""MyName"",
+  ""ChildClassProp"": ""MyValue"",
+}";
+
+        var record = JsonConvert.DeserializeObject<MyRecord>(json);
+        Assert.Equal(null, record.Name); // Not set because doesn't have DataMember
+        Assert.Equal("MyValue", record.ChildClassProp);
+    }
+
+    [DataContract]
+    public abstract class RecordBase
+    {
+        [JsonExtensionData]
+        protected IDictionary<string, JToken> additionalData;
+
+        public string Name { get; set; }
+    }
+
+    [DataContract]
+    public class MyRecord : RecordBase
+    {
+        public MyRecord(string childClassProp) => ChildClassProp = childClassProp;
+
+        [DataMember]
+        public string ChildClassProp { get; set; }
+    }
+}