Endpoint: Unable to retrieve data from last transformation within job

I tried to source data from the last step of transformation within a job - sample attached - but couldn't get it working.

I understood that the approach should be: In a job you can use as many transformations as necessary. For the transformation which returns the data:
1) Use a *Copy rows to results* step in the end
2) Prefix the job entry name with *OUTPUT*.

But it is still not working for me:

I tested with following URL:
http://localhost:8080/pentaho/plugin/bissolTableDataEditor/api/fetchDataJob?stepName=OUTPUTfetchData&paramparam_config_id=32s3a343as332sasf3

I can see in the catalina log that the transformation returns two rows:
2014/07/18 18:30:59 - OUTPUTfetchData - Loading transformation from XML file file:///home/dsteiner/apps/pentaho/biserver/biserver-ce-5.1.0/pentaho-solutions/system/bissolTableDataEditor/endpoints/kettle/fetchData.ktr
2014/07/18 18:30:59 - fetchData - Dispatching started for transformation [fetchData]
2014/07/18 18:30:59 - Table input.0 - Finished reading query, closing connection.
2014/07/18 18:30:59 - Table input.0 - Finished processing (I=2, O=0, R=0, W=2, U=0, E=0)
2014/07/18 18:30:59 - Copy rows to result.0 - Finished processing (I=0, O=0, R=2, W=2, U=0, E=0)
2014/07/18 18:30:59 - fetchDataJob - Starting entry [Success]
2014/07/18 18:30:59 - fetchDataJob - Finished job entry [Success] (result=[true])

In the web browser I see:

So somewhere I must be still doing something wrong ... or is this just now working yet ... please clarify. Please find attached my job and transformations.