Add fix for Dump on cyclical refs with IEnumerables

Author: mythz

lib/ServiceStack.Client.dll

@@ -11,6 +11,7 @@
 //
 
 using System;
+using System.Collections;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -2001,7 +2002,15 @@ public static Dictionary<string, object> ToSafePartialObjectDictionary<T>(this T
                     }
                     else if (!TypeSerializer.HasCircularReferences(entry.Value))
                     {
-                        to[entry.Key] = entry.Value.ToSafePartialObjectDictionary();
+                        var enumerable = entry.Value as IEnumerable;
+                        if (enumerable != null)
+                        {
+                            to[entry.Key] = entry.Value;
+                        }
+                        else
+                        {
+                            to[entry.Key] = entry.Value.ToSafePartialObjectDictionary();
+                        }
                     }
                     else
                     {

lib/ServiceStack.Common.dll

@@ -1,4 +1,5 @@
-using NUnit.Framework;
+using System;
+using NUnit.Framework;
 
 namespace ServiceStack.Text.Tests
 {
@@ -36,7 +37,7 @@ public void Can_detect_Circular_References_in_models()
         }
 
         [Test]
-        public void Can_PrintDump_ToSafeJson_ToSafeJsv()
+        public void Can_PrintDump_ToSafeJson_ToSafeJsv_recursive_Node()
         {
             var node = new Node(1,
                 new Node(11, new Node(111)),
@@ -53,5 +54,29 @@ public void Can_PrintDump_ToSafeJson_ToSafeJsv()
             root.ToSafeJson().Print();
             root.ToSafeJsv().Print();
         }
+
+        public class CustomExecption : Exception
+        {
+            public string[] CustomData { get; set; }
+        }
+
+        [Test]
+        public void Can_PrintDump_ToSafeJson_ToSafeJsv_Exception()
+        {
+            try
+            {
+                throw new ArgumentException("param",
+                    new CustomExecption
+                    {
+                        CustomData = new[] { "A", "B", "C"}
+                    });
+            }
+            catch (Exception ex)
+            {
+                ex.PrintDump();
+                ex.ToSafeJson().Print();
+                ex.ToSafeJsv().Print();
+            }
+        }
     }
 }