Fixes up nullable State, fixes up tracking global query strings in case they are removed by other routes

src/Umbraco.Web/Models/ContentEditing/ContentItemBasic.cs

@@ -20,6 +20,9 @@ namespace Umbraco.Web.Models.ContentEditing
         [DataMember(Name = "createDate")]
         public DateTime CreateDate { get; set; }
 
+        /// <summary>
+        /// Boolean indicating if this item is published or not based on it's <see cref="State"/>
+        /// </summary>
         [DataMember(Name = "published")]
         public bool Published => State == ContentSavedState.Published || State == ContentSavedState.PublishedPendingChanges;
 
@@ -42,9 +45,15 @@ namespace Umbraco.Web.Models.ContentEditing
         [DataMember(Name = "sortOrder")]
         public int SortOrder { get; set; }
 
+        /// <summary>
+        /// The saved/published state of an item
+        /// </summary>
+        /// <remarks>
+        /// This is nullable since it's only relevant for content (non-content like media + members will be null)
+        /// </remarks>
         [DataMember(Name = "state")]
         [JsonConverter(typeof(StringEnumConverter))]
-        public ContentSavedState State { get; set; }
+        public ContentSavedState? State { get; set; }
 
         protected bool Equals(ContentItemBasic other)
         {