changed: OC: only print irrelevant fields in previews and in readonly views that don't load a record,
changed: OC: only print irrelevant fields in previews and in readonly views that don't load a record,

closes https://github.com/kobotoolbox/enketo-express/issues/774

OpenClinica/enketo-express-oc,OpenClinica/enketo-express-oc,OpenClinica/enketo-express-oc