delimits_object not working

[timrdf]

https://github.com/apseyed/SemantGeo/blob/master/data/source/dataone/dataone-objects/version/2013-May-29/source/dataone.csv has:

e1:keywords "carbon,ecology,ecosystems,nitrogen,nutrients,soil,species" ;

https://github.com/apseyed/SemantGeo/blob/master/data/source/dataone/dataone-objects/version/2013-May-29/manual/dataone.csv.e1.params.ttl

has:

      conversion:enhance [
         ov:csvCol          39;
         ov:csvHeader       "keywords";
         #conversion:label   "keywords";
         conversion:comment "";
         conversion:delimits_object ",\\s*";
         conversion:range   todo:Literal;
      ];

Per https://github.com/timrdf/csv2rdf4lod-automation/wiki/conversion:delimits_object

but still returns

e1:keywords "carbon,ecology,ecosystems,nitrogen,nutrients,soil,species" ;

[timrdf]

not a bug. enhancement was specified on wrong column.