[NTG-context] Error with spaces in Argument of \startproduct

Hello, as the title suggested, I get an error when using spaces in the argument of \startproduct. For example typesetting \startproduct{foo bar} \starttext foo \stoptext \stopproduct results in an error: tex error > tex error on line 2 in file ./foo bar.tex: Too many }'s Best regards Jannik Voges