fixed validation not refreshing virtual items

MediaBrowser.Controller/Entities/Folder.cs

@@ -8,7 +8,6 @@ using MediaBrowser.Model.Entities;
 using MoreLinq;
 using System;
 using System.Collections;
-using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
@@ -365,14 +364,12 @@ namespace MediaBrowser.Controller.Entities
         {
             var locationType = LocationType;
 
-            // Nothing to do here
-            if (locationType == LocationType.Remote || locationType == LocationType.Virtual)
-            {
-                return;
-            }
-
             cancellationToken.ThrowIfCancellationRequested();
 
+            var validChildren = new List<Tuple<BaseItem, bool>>();
+
+            if (locationType != LocationType.Remote && locationType != LocationType.Virtual)
+            {
                 IEnumerable<BaseItem> nonCachedChildren;
 
                 try
@@ -381,7 +378,7 @@ namespace MediaBrowser.Controller.Entities
                 }
                 catch (IOException ex)
                 {
-                nonCachedChildren = new BaseItem[] { };
+                    nonCachedChildren = new BaseItem[] {};
 
                     Logger.ErrorException("Error getting file system entries for {0}", ex, Path);
                 }
@@ -394,7 +391,6 @@ namespace MediaBrowser.Controller.Entities
                 var currentChildren = ActualChildren.ToDictionary(i => i.Id);
 
                 //create a list for our validated children
-            var validChildren = new List<Tuple<BaseItem, bool>>();
                 var newItems = new List<BaseItem>();
 
                 cancellationToken.ThrowIfCancellationRequested();
@@ -451,10 +447,10 @@ namespace MediaBrowser.Controller.Entities
                             item.LocationType == LocationType.Remote)
                         {
                             // Don't remove these because there's no way to accurately validate them.
-                        continue;
+                            validChildren.Add(new Tuple<BaseItem, bool>(item, false));
                         }
 
-                    if (!string.IsNullOrEmpty(item.Path) && IsPathOffline(item.Path))
+                        else if (!string.IsNullOrEmpty(item.Path) && IsPathOffline(item.Path))
                         {
                             item.IsOffline = true;
 
@@ -483,6 +479,11 @@ namespace MediaBrowser.Controller.Entities
 
                     await ItemRepository.SaveChildren(Id, ActualChildren.Select(i => i.Id).ToList(), cancellationToken).ConfigureAwait(false);
                 }
+            }
+            else
+            {
+                validChildren.AddRange(ActualChildren.Select(i => new Tuple<BaseItem, bool>(i, false)));
+            }
 
             progress.Report(10);