doi2bib has broken our tests

[oesteban]

As @yarikoptic reported over email some days ago:

• gives differently formatted citation for me now (no journal!) (doi2bib 0.4.0, templateflow 0.7.1)

      In [10]: print(get_citations("UNCInfant", bibtex=True)[0])
      @article{2011,
              doi = {10.1371/journal.pone.0018746},
              url = {https://doi.org/10.1371%2uncinfant1.pone.0018746},
              year = 2011,
              month = {apr},
              publisher = {Public Library of Science ({PLoS})},
              volume = {6},
              number = {4},
              pages = {e18746},
              author = {Feng Shi and Pew-Thian Yap and Guorong Wu and Hongjun Jia and John H. Gilmore and Weili Lin and Dinggang Shen},
              editor = {Hitoshi Okazawa},
              title = {Infant Brain Atlases from Neonates to 1- and 2-Year-Olds}
      }

  so id is a bit off (2011) - not the atlas name

direct query does return journal (and better "id")

        $> curl --silent -L -d "" --header "Accept: application/x-bibtex; charset=utf-8" https://doi.org/10.1371/journal.pone.0018746
        @article{Shi_2011,
                doi = {10.1371/journal.pone.0018746},
                url = {https://doi.org/10.1371%2Fjournal.pone.0018746},
                year = 2011,
                month = {apr},
                publisher = {Public Library of Science ({PLoS})},
                volume = {6},
                number = {4},
                pages = {e18746},
                author = {Feng Shi and Pew-Thian Yap and Guorong Wu and Hongjun Jia and John H. Gilmore and Weili Lin and Dinggang Shen},
                editor = {Hitoshi Okazawa},
                title = {Infant Brain Atlases from Neonates to 1- and 2-Year-Olds},
                journal = {{PLoS} {ONE}}
        }%   

and journal entry is formatted correctly (has leading {)