[NTG-context] Page number 0 in Table of Contents with makeup

11 Aug 2020

      Consider this example:

    \definemakeup[toc][align=middle]
    \setuppagenumbering[alternative=doublesided]
    \starttext
      \startfrontmatter
        \startmakeup[toc]
          \placecontent
        \stopmakeup
        %\setuppagenumber[number=1]
        \startchapter[title={A}]\stopchapter
        \startchapter[title={B}]\stopchapter
      \stopfrontmatter
    \stoptext

The first entry in the ToC has page number 0. I can fix it by
uncommenting the commented line or by removing the makeup. Is this
expected behaviour? If so, why?

Nicola