ClientSideRegionScanner's reaction to Scan#setBatch is not consistent between HBase versions

// 1.1.3
public class ClientSideRegionScanner extends AbstractClientScanner {
  ...
  @Override
  public Result next() throws IOException {
    values.clear();
    scanner.nextRaw(values);
    ...

// 1.0.3 and 0.98.17
public class ClientSideRegionScanner extends AbstractClientScanner {
  ...
  @Override
  public Result next() throws IOException {
    values.clear();

    scanner.nextRaw(values, -1); // pass -1 as limit so that we see the whole row.
    ...