remove SetPathInfos in UpdateMediaPath

Emby.Server.Implementations/Library/LibraryManager.cs

@@ -3038,9 +3038,7 @@ namespace Emby.Server.Implementations.Library
             {
                 var libraryOptions = CollectionFolder.GetLibraryOptions(virtualFolderPath);
 
-                var list = libraryOptions.PathInfos.ToList();
-                list.Add(pathInfo);
-                libraryOptions.SetPathInfos(list.ToArray());
+                libraryOptions.PathInfos.Add(pathInfo);
 
                 SyncLibraryOptionsToLocations(virtualFolderPath, libraryOptions);
 
@@ -3068,8 +3066,6 @@ namespace Emby.Server.Implementations.Library
                 }
             }
 
-            libraryOptions.SetPathInfos(list.ToArray());
-
             CollectionFolder.SaveLibraryOptions(virtualFolderPath, libraryOptions);
         }