change cast icon state appropriately

MediaBrowser.Controller/Entities/Folder.cs

@@ -375,6 +375,28 @@ namespace MediaBrowser.Controller.Entities
             }
         }
 
+        private Dictionary<Guid, BaseItem> GetActualChildrenDictionary()
+        {
+            var dictionary = new Dictionary<Guid, BaseItem>();
+
+            foreach (var child in ActualChildren)
+            {
+                var id = child.Id;
+                if (dictionary.ContainsKey(id))
+                {
+                    Logger.Error( "Found folder containing items with duplicate id. Path: {0}, Child Name: {1}",
+                        Path ?? Name,
+                        child.Path ?? child.Name);
+                }
+                else
+                {
+                    dictionary[id] = child;
+                }
+            }
+
+            return dictionary;
+        }
+
         /// <summary>
         /// Validates the children internal.
         /// </summary>
@@ -413,7 +435,7 @@ namespace MediaBrowser.Controller.Entities
                 progress.Report(5);
 
                 //build a dictionary of the current children we have now by Id so we can compare quickly and easily
-                var currentChildren = ActualChildren.ToDictionary(i => i.Id);
+                var currentChildren = GetActualChildrenDictionary();
 
                 //create a list for our validated children
                 var newItems = new List<BaseItem>();

MediaBrowser.Server.Implementations/Library/Resolvers/Audio/AudioResolver.cs

@@ -1,5 +1,7 @@
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Resolvers;
+using MediaBrowser.Model.Entities;
+using System;
 
 namespace MediaBrowser.Server.Implementations.Library.Resolvers.Audio
 {
@@ -29,10 +31,16 @@ namespace MediaBrowser.Server.Implementations.Library.Resolvers.Audio
             if (!args.IsDirectory)
             {
                 if (EntityResolutionHelper.IsAudioFile(args.Path))
+                {
+                    var collectionType = args.GetCollectionType();
+
+                    if (string.Equals(collectionType, CollectionType.Music, StringComparison.OrdinalIgnoreCase) ||
+                        string.IsNullOrEmpty(collectionType))
                     {
                         return new Controller.Entities.Audio.Audio();
                     }
                 }
+            }
 
             return null;
         }

MediaBrowser.ServerApplication/ApplicationHost.cs

@@ -345,25 +345,9 @@ namespace MediaBrowser.ServerApplication
 
             foreach (var folder in folders)
             {
-                MigrateUserFolder(folder);
-            }
-        }
-
-        private void MigrateUserFolder(DirectoryInfo folder)
-        {
-            var foldersInDefault = new DirectoryInfo(ApplicationPaths.DefaultUserViewsPath).EnumerateDirectories("*", SearchOption.TopDirectoryOnly).ToList();
-
-            var foldersInUserView = folder.EnumerateDirectories("*", SearchOption.TopDirectoryOnly).ToList();
-
-            var foldersToMove = foldersInUserView.Where(i => !foldersInDefault.Any(f => string.Equals(f.Name, i.Name, StringComparison.OrdinalIgnoreCase))).ToList();
-
-            foreach (var folderToMove in foldersToMove)
-            {
-                folderToMove.MoveTo(Path.Combine(ApplicationPaths.DefaultUserViewsPath, folderToMove.Name));
-            }
-
                 Directory.Delete(folder.FullName, true);
             }
+        }
 
         /// <summary>
         /// Registers resources that classes will depend on