Returns whether the path has had an out-of-order write.

def _HasOOOWrite(self, path):
    """Returns whether the path has had an out-of-order write."""
    # Check the sizes of each path before the current one.
    size = tf.io.gfile.stat(path).length
    old_size = self._finalized_sizes.get(path, None)
    if size != old_size:
      if old_size is None:
        logger.error('File %s created after file %s even though it\'s '
                         'lexicographically earlier', path, self._path)
      else:
        logger.error('File %s updated even though the current file is %s',
                         path, self._path)
      return True
    else:
      return False