[NTG-context] mathvariant bold NOT bold-italic

Hi, as far as I have understood MathML, elements tagged with mathvariant=bold should be set upright bold, not bold-italic. Could this be corrected, please? Thank you very much! Steffen --- \usemodule[mathml] \starttext \placeformula\startformula[9pt] \setbuffer http://www.w3.org/1998/Math

[NTG-context] mathvariant bold

Hi, any idea, how to get it p typeset in bold?? Steffen --- \usemodule[mathml] \starttext \placeformula\startformula[9pt] \setbuffer http://www.w3.org/1998/Math/MathML";> http://www.w3.org/1998/Math/MathML";>π http://www.w3.org/1998/Math/MathML";>= http://www.w3.org/1998/Math/MathML"