@Override
  public void beforeShipped() throws IOException {
    if (deleteCell != null) {
      deleteCell = KeyValueUtil.toNewKeyCell(deleteCell);
    }
  }
Check if the specified Cell buffer has been deleted by a previously seen delete.
@param cell - current cell to check if deleted by a previously seen delete
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/querymatcher/ScanDeleteTracker.java