update refresh

MediaBrowser.Controller/Entities/BaseItem.cs

@@ -1031,9 +1031,7 @@ namespace MediaBrowser.Controller.Entities
                 }
                 : options;
 
-            var result = await ProviderManager.RefreshSingleItem(this, refreshOptions, cancellationToken).ConfigureAwait(false);
-
-            return result;
+            return await ProviderManager.RefreshSingleItem(this, refreshOptions, cancellationToken).ConfigureAwait(false);
         }
 
         [IgnoreDataMember]

MediaBrowser.Controller/Entities/Folder.cs

@@ -461,17 +461,15 @@ namespace MediaBrowser.Controller.Entities
 
                     foreach (var item in itemsRemoved)
                     {
-                        if (item.LocationType == LocationType.Virtual ||
-                            item.LocationType == LocationType.Remote)
+                        var itemLocationType = item.LocationType;
+                        if (itemLocationType == LocationType.Virtual ||
+                            itemLocationType == LocationType.Remote)
                         {
-                            // Don't remove these because there's no way to accurately validate them.
-                            validChildren.Add(item);
                         }
 
                         else if (!string.IsNullOrEmpty(item.Path) && IsPathOffline(item.Path))
                         {
                             await UpdateIsOffline(item, true).ConfigureAwait(false);
-                            validChildren.Add(item);
                         }
                         else
                         {

MediaBrowser.Providers/Manager/MetadataService.cs

@@ -422,12 +422,6 @@ namespace MediaBrowser.Providers.Manager
                 providers = providers
                     .Where(i =>
                     {
-                        var hasChangeMonitor = i as IHasChangeMonitor;
-                        if (hasChangeMonitor != null)
-                        {
-                            return HasChanged(item, hasChangeMonitor, dateLastImageRefresh, options.DirectoryService);
-                        }
-
                         var hasFileChangeMonitor = i as IHasItemChangeMonitor;
                         if (hasFileChangeMonitor != null)
                         {

MediaBrowser.Server.Implementations/Devices/CameraUploadsFolder.cs

@@ -28,6 +28,7 @@ namespace MediaBrowser.Server.Implementations.Devices
             return base.IsVisible(user) && HasChildren();
         }
 
+        [IgnoreDataMember]
         public override string CollectionType
         {
             get { return Model.Entities.CollectionType.Photos; }