CsvHelper 7.1.0 - CsvWriter NullReferenceException on multiple Dispose calls

Tests.cs

using System;
using System.IO;
using CsvHelper;
using Xunit;

namespace CsvHelperDisposeTests
{
    public class Tests
    {
        [Fact]
        public void Test_Dispose()
        {
            // Create a stream.
            using (var ms = new MemoryStream())
            using (var streamWriter = new StreamWriter(ms))
            {
                // Create the writer.
                var writer = new CsvWriter(streamWriter);

                // Dispose twice.
                writer.Dispose();
                writer.Dispose();
            }
        }
    }
}