langid.map.individual won't work with langid.map.keepOrig

<processor class="org.apache.solr.update.processor.LangDetectLanguageIdentifierUpdateProcessorFactory">
      <str name="langid.fl">title,author</str>
      <str name="langid.langsField">detected_languages</str>
      <str name="langid.whitelist">de,en</str>
      <str name="langid.fallback">txt</str>
      <bool name="langid.map">true</bool>
      <bool name="langid.map.individual">true</bool>
      <bool name="langid.map.keepOrig">true</bool>
    </processor>