SP-357, BIS-242: bug fixed: Sample modifier and modification date not updated.

SVN: 27504

openbis/source/java/ch/systemsx/cisd/openbis/generic/server/business/bo/DataBO.java

@@ -222,7 +222,7 @@ public class DataBO extends AbstractDataSetBusinessObject implements IDataBO
 
         final ExperimentPE experiment = sample.getExperiment();
 
-        data.setSample(sample);
+        RelationshipUtils.setSampleForDataSet(data, sample, session);
         RelationshipUtils.setExperimentForDataSet(data, experiment, session);
 
         setParentDataSets(experiment, newData);