restored display of HTML MARC when no &ot= argument is specified
restored display of HTML MARC when no &ot= argument is specified

tiborsimko/invenio-search,inveniosoftware/invenio-records,inveniosoftware/invenio-search,tiborsimko/invenio-records,inveniosoftware/invenio-records,tiborsimko/invenio-records,tiborsimko/invenio-search,inveniosoftware/invenio-search