[NTG-context] \startitemize[columns] in a figure caption

Hello, \startitemize [columns] does not work in a figure caption (for example). [I can already hear Hans saying "of course it doesn't".] Alan "minimal" example: \starttext \startitemize [a,columns] % columns work here... \startitem first \stopitem \startitem second \stopitem \startitem third \stopitem \startitem fourth \stopitem \stopitemize \startplacefigure [ title={My figure \startitemize [a,columns] % ...but not here! \startitem first \stopitem \startitem second \stopitem \startitem third \stopitem \startitem fourth \stopitem \stopitemize } ] \externalfigure [cow] \stopplacefigure \stoptext