@Override
  public boolean nextRaw(List<? super ExtendedCell> outResults) throws IOException {
    // Use the RegionScanner's context by default
    return nextRaw(outResults, defaultScannerContext);
  }
Reset both the filter and the old filter.
@throws IOException in case a filter raises an I/O exception.
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RegionScannerImpl.java