From e2e5a8ef3207e4a8e1172a5b3ffeacbdd063cd79 Mon Sep 17 00:00:00 2001
From: Luke Pulverenti <luke.pulverenti@gmail.com>
Date: Mon, 9 May 2016 11:41:56 -0400
Subject: [PATCH] fix refresh

---
 MediaBrowser.Providers/Manager/MetadataService.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/MediaBrowser.Providers/Manager/MetadataService.cs b/MediaBrowser.Providers/Manager/MetadataService.cs
index 330b81374..a0c6bd889 100644
--- a/MediaBrowser.Providers/Manager/MetadataService.cs
+++ b/MediaBrowser.Providers/Manager/MetadataService.cs
@@ -444,9 +444,10 @@ namespace MediaBrowser.Providers.Manager
                 var folder = item as Folder;
                 if (folder != null && folder.SupportsDateLastMediaAdded)
                 {
-                    var date = folder.GetRecursiveChildren(i => !i.IsFolder).Select(i => i.DateCreated).Max();
+                    var items = folder.GetRecursiveChildren(i => !i.IsFolder).Select(i => i.DateCreated).ToList();
+                    var date = items.Count == 0 ? (DateTime?)null : items.Max();
 
-                    if (!folder.DateLastMediaAdded.HasValue || folder.DateLastMediaAdded.Value != date)
+                    if ((!folder.DateLastMediaAdded.HasValue && date.HasValue) || folder.DateLastMediaAdded != date)
                     {
                         folder.DateLastMediaAdded = date;
                         updateType = ItemUpdateType.MetadataEdit;