TransferUtility.UploadAsync() throws error: "content would exceed Content-Length" when update to .NET8 about aws-sdk-net HOT 18 OPEN

Amazon.AWSConfigs.LoggingConfig.LogResponses = Amazon.ResponseLoggingOption.Always;
Amazon.AWSConfigs.LoggingConfig.LogTo = Amazon.LoggingOptions.SystemDiagnostics;
Amazon.AWSConfigs.AddTraceListener("Amazon", new System.Diagnostics.ConsoleTraceListener());

var boundary = Request.GetBoundary();
var reader = new MultipartReader(boundary, Request.Body, _bufferSize);
MultipartSection section;
while ((section = await reader.ReadNextSectionAsync(cancellationToken)) != null)
{
    var contentDisposition = section.GetContentDispositionHeader();
    if (contentDisposition.IsFileDisposition())
    {
        var fileSection = section.AsFileSection();

        _logger.LogInformation("Received file to upload: {0}", fileSection.FileName);

        Validate.FormFile(fileSection.FileStream, fileSection.FileName, fileSection.Section.ContentType);
        var stream = new TypedStream
        {
            ContentType = fileSection.Section.ContentType,
            ContentStream = fileSection.FileStream,
            Filename = fileSection.FileName
        };
        await _documentManager.UploadDocument(tenantId, new DocumentReference(documentId), name, stream);
    }
}

public async Task UploadDocument(Guid tenantId, IDocumentReference document,
    string name, ITypedStream stream)
{
    //... other code logic
    await _storageManager.UploadContentStream(tenantId, document.DocumentId, name, stream);
}

public async Task UploadContentStream(Guid tenantId, Guid id, string name, ITypedStream typedStream, CancellationToken cancellationToken = default)
{
	
	var fullPath = $"{tenantId}/{id}/{name.ToLower()}";
	await _blobStorageRepo.UploadAsync(typedStream.ContentStream, fullPath, typedStream.ContentType, cancellationToken);
	_logger.LogInformation("Content stream has been uploaded");
}

var boundary = Request.GetBoundary();
var reader = new MultipartReader(boundary, Request.Body, _bufferSize);
MultipartSection section;
while ((section = await reader.ReadNextSectionAsync(cancellationToken)) != null)
{
    var contentDisposition = section.GetContentDispositionHeader();
    if (contentDisposition.IsFileDisposition())
    {
        var fileSection = section.AsFileSection();

        _logger.LogInformation("Received file to upload: {0}", fileSection.FileName);

        Validate.FormFile(fileSection.FileStream, fileSection.FileName, fileSection.Section.ContentType);
        var stream = new TypedStream
        {
            ContentType = fileSection.Section.ContentType,
            ContentStream = fileSection.FileStream,
            Filename = fileSection.FileName
        };
        await _documentManager.UploadDocument(tenantId, new DocumentReference(documentId), name, stream);
    }
}

var fStream = System.IO.File.OpenRead(@"C:\original0001.pdf");
var stream = new TypedStream
{
    ContentType = "application/pdf",
    ContentStream = fStream,
    Filename = "original0001.pdf"
};
await _documentManager.UploadDocument(tenantId, new DocumentReference(documentId), name, stream);