Dear list,

A recent question on TeX.SX is asking about XML processing.
https://tex.stackexchange.com/questions/380935

To reproduce the error from the question I copied the demo from the XML manual.  First of all we
have demo.xml:


<?xml version='1.0' standalone='yes'?>
<document>
  <section>
    <title>Some title</title>
    <content>
      <p>a paragraph of text</p>
      <p>another paragraph of text</p>
    </content>
  </section>
</document>


And then we have a ConTeXt document:


\startxmlsetups xml:demo:base
  \xmlsetsetup{#1}{*}{-}
  \xmlsetsetup{#1}{document|section|p}{xml:demo:*}
\stopxmlsetups

\xmlregisterdocumentsetup{demo}{xml:demo:base}

\startxmlsetups xml:demo:document
  \starttitle[title={Contents}]
    \placelist[chapter]
  \stoptitle
  \xmlflush{#1}
\stopxmlsetups

\startxmlsetups xml:demo:section
  \startchapter[title=\xmlfirst{#1}{/title}]
    \xmlfirst{#1}{/content}
  \stopchapter
\stopxmlsetups

\startxmlsetups xml:demo:p
  \xmlflush{#1}\endgraf
\stopxmlsetups

\starttext
\xmlprocessfile{demo}{demo.xml}{}
\stoptext


This works partially.  Some entities are printed fine but stuff in \xmlfirst is missing.  I can
reproduce this in TL2017 and latest beta.  In the attached PDF you can see that the section has no
title and no content (exactly the stuff \xmlfirst was supposed to get).

Cheers, Henri