Catch an exception thrown when result is empty, due to a bug in libxslt.
Catch an exception thrown when result is empty, due to a bug in libxslt.

tiborsimko/invenio-formatter,inveniosoftware/invenio-formatter,inveniosoftware/invenio-formatter,inveniosoftware/invenio-formatter,tiborsimko/invenio-formatter,tiborsimko/invenio-formatter