1 files changed, 12 insertions, 0 deletions
diff --git a/MediaBrowser.Controller/Entities/IByReferenceItem.cs b/MediaBrowser.Controller/Entities/IByReferenceItem.cs
new file mode 100644
index 000000000..b071473e1
--- /dev/null
+++ b/MediaBrowser.Controller/Entities/IByReferenceItem.cs
@@ -0,0 +1,12 @@
+
+namespace MediaBrowser.Controller.Entities
+{
+    /// <summary>
+    /// This is a marker class that tells us that a particular item type may be physically resolved
+    /// more than once within the library and we need to be sure to resolve them all to the same
+    /// instance of that item.
+    /// </summary>
+    public interface IByReferenceItem
+    {
+    }
+}