[NTG-context] spac-ver.lua:580: attempt to index field 'spec'

Hello, With this test-file: \starttext \blank[force] bla \stoptext I get the following error: error: ...text/tex/texmf-context/tex/context/base/spac-ver.lua:580: attempt to index field 'spec' (a nil value) Workaround: \starttext \strut\blank bla \stoptext Cheers, Peter -- Contact information: http://pmrb.free.fr/contact/