[NTG-context] widowpenalty in mixedcolumns

Dear list, while \widowpenalty is respected in conventional columns, inside or outside \startmixedcolumns and \stopmixedcolumns, it is ignored. How can I make ConTeXt avoid widows in mixedcolumns? (I can't use conventional columns, some things like distance=... don't work there.) Thank you, Joshua Krämer MWE: \starttext \startmixedcolumns %\startcolumns \widowpenalty10000 \dorecurse{290}{word } \dorecurse{250}{second } \stopmixedcolumns %\stopcolumns \stoptext