Fail upload if metadata stripping fails

VoidCat/Services/Files/LocalDiskFileStorage.cs

@@ -79,8 +79,8 @@ public class LocalDiskFileStore : StreamFileStore, IFileStore
             }
             else
             {
-                // move orig file back
-                File.Move(srcPath, finalPath);
+                File.Delete(srcPath);
+                throw new Exception("Failed to strip metadata, please try again");
             }
         }