Fix distinction queries (#14007)

MediaBrowser.Controller/Entities/BaseItem.cs

@@ -1804,7 +1804,7 @@ namespace MediaBrowser.Controller.Entities
 
         public void SetStudios(IEnumerable<string> names)
         {
-            Studios = names.Trimmed().Distinct().ToArray();
+            Studios = names.Trimmed().Distinct(StringComparer.OrdinalIgnoreCase).ToArray();
         }
 
         /// <summary>

MediaBrowser.Controller/Entities/Movies/BoxSet.cs

@@ -197,7 +197,7 @@ namespace MediaBrowser.Controller.Entities.Movies
             var expandedFolders = new List<Guid>();
 
             return FlattenItems(this, expandedFolders)
-                .SelectMany(i => LibraryManager.GetCollectionFolders(i))
+                .SelectMany(LibraryManager.GetCollectionFolders)
                 .Select(i => i.Id)
                 .Distinct()
                 .ToArray();