GetObjectAsync.WithOffsetAndLength leads to an error if offset = 0

[And1Kl1]

I tried to stream a file partial. For this I use the function "GetObjectAsync.WithOffsetAndLength". When calling the method with offset != 0 the call works as expected. As soon as I call the method with offset = 0 the file is not returned from the beginning.
For this I use this code:

using MemoryStream memoryStream = new MemoryStream();
var args = new GetObjectArgs()
                    .WithBucket(_bucketName)
                    .WithObject(path)
                    .WithOffsetAndLength(0, 5)
                    .WithCallbackStream((stream) =>
                    {
                        stream.CopyTo(memoryStream);
                        stream.Dispose();
                    });

                await _minioClient.GetObjectAsync(args);

byte[] bytes = new byte[5];
memoryStream.Read(bytes, 0, 5);

The file I'm reading in contains this data:

hex 
31 32 33 34 35 36 37 38 39 -> 123456789 

I expected the following data to be read:

hex 
31 32 33 34 35 -> 12345 

Instead, the following data was read:

hex 
36 37 38 39 00-> 6789-