Fix fix_doi.
Fix fix_doi.

johnbachman/belpy,johnbachman/belpy,johnbachman/belpy,pvtodorov/indra,johnbachman/indra,sorgerlab/belpy,pvtodorov/indra,sorgerlab/belpy,johnbachman/indra,sorgerlab/indra,sorgerlab/indra,bgyori/indra,pvtodorov/indra,sorgerlab/indra,bgyori/indra,bgyori/indra,pvtodorov/indra,sorgerlab/belpy,johnbachman/indra