Merge pull request #5808 from cvium/semi-fix-collection-perf

(cherry picked from commit 48ed4b016c)
Signed-off-by: Joshua M. Boniface <joshua@boniface.me>

MediaBrowser.Controller/Entities/Folder.cs

@@ -1434,9 +1434,14 @@ namespace MediaBrowser.Controller.Entities
             var linkedChildren = LinkedChildren;
             foreach (var i in linkedChildren)
             {
-                if (i.ItemId.HasValue && i.ItemId.Value == itemId)
+                if (i.ItemId.HasValue)
                 {
-                    return true;
+                    if (i.ItemId.Value == itemId)
+                    {
+                        return true;
+                    }
+
+                    continue;
                 }
 
                 var child = GetLinkedChild(i);