Copying Large file under watched path cause events Created and Changed to fire

[Damianoux]

Start FileSystemWatcherEx, then try to copy a very large file in the watched path. Result: Two events are fired, "Created" on start copying and "Changed" on end copying Expected: Only Created Event shoul have been fired at the end of copy when file is ready to be processed, dame as for small files. Here is the test code:

`using System; using System.IO; using FileWatcherEx;

namespace MyNamespace { class MyClassCS { static void Main() { Environment.SetEnvironmentVariable("DOTNET_USE_POLLING_FILE_WATCHER", "1");

        using var watcher = new FileSystemWatcherEx(@"\\my\path");

        watcher.NotifyFilter = NotifyFilters.Attributes
                             | NotifyFilters.CreationTime
                             | NotifyFilters.DirectoryName
                             | NotifyFilters.FileName
                             | NotifyFilters.LastAccess
                             | NotifyFilters.LastWrite
                             | NotifyFilters.Security
                             | NotifyFilters.Size;

        // event handlers
        watcher.OnRenamed += FWOnChanged;
        watcher.OnCreated += FWOnCreated;
        watcher.OnDeleted += FWOnDeleted;
        watcher.OnChanged += FWOnChanged;
        watcher.OnError += FWOnError;

        watcher.Filter = "*.*";
        watcher.IncludeSubdirectories = true;

        // thread-safe for event handlers
       // watcher.SynchronizingObject = this;

        // start watching
        watcher.Start();


        Console.WriteLine("Press enter to exit.");
        Console.ReadLine();
    }

    private static void FWOnChanged(object? sender, FileChangedEvent e)
    {

        Console.WriteLine($"Changed: {e.FullPath}");
    }

    private static void FWOnCreated(object? sender, FileChangedEvent e)
    {
        string value = $"Created: {e.FullPath}";
        Console.WriteLine(value);
    }

    private static void FWOnDeleted(object? sender, FileChangedEvent e) =>
        Console.WriteLine($"Deleted: {e.FullPath}");

    private static void FWOnRenamed(object? sender, RenamedEventArgs e)
    {
        Console.WriteLine($"Renamed:");
        Console.WriteLine($"    Old: {e.OldFullPath}");
        Console.WriteLine($"    New: {e.FullPath}");
    }

    private static void FWOnError(object? sender, ErrorEventArgs e) =>
        PrintException(e.GetException());

    private static void PrintException(Exception? ex)
    {
        if (ex != null)
        {
            Console.WriteLine($"Message: {ex.Message}");
            Console.WriteLine("Stacktrace:");
            Console.WriteLine(ex.StackTrace);
            Console.WriteLine();
            PrintException(ex.InnerException);
        }
    }
}

}`