[NTG-context] formulas: numbering problem

Dear all, I've spotted a problem with the numbering of the formulas (default setting: (CHAPTER.FORMULANUMBER)): If a heading that does not come with a number is introduced, the chapter number vanishes from the reference number for the formula. I have provided a minimal example to illustrate the behaviour. Any ideas for a quick fix?! Thanks, Andreas ConTeXt ver: 2012.11.23 17:35 MKIV %%%%minimal example%%%% \setuphead[subsection][number=no] \starttext \chapter{First Chapter} \section{First Section} \placeformula \startformula Ax=b % as expected: (1.1) \stopformula \subsection{First Subsection} \placeformula \startformula Ax=b % not as expected: (2) instead of (1.2) \stopformula \stoptext %%%%minimal example%%%%