[LMS-1191] set data set parents field max length to 1500

SVN: 12891

openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/data/DataSetUploadForm.java

@@ -98,6 +98,7 @@ public class DataSetUploadForm extends AbstractRegistrationForm
                         viewContext);
         formPanel.add(experimentChooser.getField());
         formPanel.add(parentsArea = new DataSetParentsArea(viewContext, ID_SUFFIX));
+        parentsArea.setMaxLength(1500);
 
         connectedWithSampleCheckbox.addListener(Events.Change, new Listener<FieldEvent>()
             {