 properly implement object tracking.  Object tracking is required in order
    to correctly implement serialization of pointers to instances of derived classes.
  </dd>  
  <dt><h4><code>
    la.delete_created_pointers()
  </code></h4></dt>
  <dd>
    Deletes all objects created by the loading of pointers.  This can be used to
    avoid memory leaks that might otherwise occur if pointers are being loaded
    and the archive load encounters an exception.
  </dd>
</dl>

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