xml-file of csl-citation style renders line feed character (
) verbatim using pandoc

Question

i'm preparing a beamer-presentation-template for our institution. We want to use --citeproc and a specific csl style. So far, everything went fine. The file is processed without problems and inline-citations, as well as the bibliography is rendered as wanted.

Only one problem occured: Entries with an URL or an DOI are also rendered correctly, except for the line feed character. It should insert a linebreak before URLs/DOIs but instead is rendered verbatim.

The csl style I use is of the German Archaeological Institute (full source code).

The corresponding code part is the following:

  <macro name="url">
    <choose>
      <if match="any" variable="URL">
        <group display="block" prefix=",&amp;#10;"> <!-- Here the line feed character -->
          <text variable="URL" text-case="lowercase" prefix="&lt;" suffix="&gt;"/>
          <choose>
            <if match="none" is-uncertain-date="accessed">
              <date form="text" variable="accessed" prefix=" (" suffix=")"/>
            </if>
          </choose>
        </group>
      </if>
    </choose>
  </macro>
  <macro name="doi">
    <choose>
      <if match="any" variable="DOI">
        <group display="block" prefix=",&amp;#10;"> <!-- Here the line feed character -->
          <text value="doi: " font-variant="small-caps"/>
          <text variable="DOI"/>
        </group>
      </if>
    </choose>
  </macro>

But if i run my pandoc comman pandoc -t beamer -H header.tex --citeproc conference.md -o conference.pdf it renders as on the image, without inserting a linebreak and showing the character verbatim. There also appears an unnecessary space in front of the comma befor the DOI:

My knowledge of xml is very rudimentary. Does somebody knows what the problem could be?

Edit:

The wanted output is simple a linebreak after the comma and before the DOI. That is how the bibliographic style of the institution describes it. That is how it should look like:

M. D. Wilkinson – M. Dumontier et al., The FAIR guiding principles for scientific data management and stewardship, Sci Data 3, 1, 2016,
doi: 10.1038/sdata.2016.18.

The xml code is the original downloaded from the Zotero Style Repository without changes from my site.

Best