\showframe

\starttext
    \placefigure[top]{}{}
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    \placefigure[top]{}{}
    \placefigure[top]{}{}
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    \placefigure[top]{}{}
    \input ward \par
    \input ward \par
    \input ward \par
    \input ward \par
    \blank
    \startmixedcolumns test \column test \stopmixedcolumns
    test \par
\stoptext

