[NTG-context] Prefix for figure number lost in unnumbered subsection

Hi, Consider the following example where I wanted to remove subsubsection numbers (as one ends with way too many numbers otherwise). The figure numbering is screwed up, I get: - Figure 1.1 - Figure 2 - Figure 1.3 \setuphead [subsubsection] [number=no] \starttext \chapter{Chapter A} \section{Section B} \subsection{Subsection C} \placefigure[force]{correct prefix}{test} \subsubsection{Subsubsection D} \placefigure[force]{no prefix number}{test} \subsection{Subsection E} \placefigure[force]{correct prefix}{test} \stoptext How to fix that? (I know that I can used something else than subsubsection, but it would be nice to get a proper fix.) Thank you, Mojca