Fix issue with figuring out whether a published content version is draft

src/Umbraco.Web/PublishedCache/NuCache/DataSource/ContentNestedData.cs

@@ -1,5 +1,6 @@
 using Newtonsoft.Json;
 using System.Collections.Generic;
+using Umbraco.Core.Serialization;
 
 namespace Umbraco.Web.PublishedCache.NuCache.DataSource
 {
@@ -9,9 +10,11 @@ namespace Umbraco.Web.PublishedCache.NuCache.DataSource
     internal class ContentNestedData
     {
         [JsonProperty("properties")]
+        [JsonConverter(typeof(CaseInsensitiveDictionaryConverter<PropertyData[]>))]
         public Dictionary<string, PropertyData[]> PropertyData { get; set; }
 
         [JsonProperty("cultureData")]
+        [JsonConverter(typeof(CaseInsensitiveDictionaryConverter<CultureVariation>))]
         public Dictionary<string, CultureVariation> CultureData { get; set; }
     }
 }