Unexpected behavior of the CurrentBatchRowCount() method

In version 2.0.8 of the library, this method always returns 0, even though the dataset contains records. In earlier versions of the library, the RowCount property worked correctly and returned the actual number of records.

Code example:

```csharp
var count = dataset.CurrentBatchRowCount();
// variable count always contains 0

var list = new List(count);
while (await dataset.HasNextAsync())
{
var row = dataset.Next();
list.Add(new DataItem(row, false));
}
```