[NTG-context] Protrusion cancellation by index term

Dear All, when a punctuated phrase appears at the beginning of the line, it is not protruded correctly when preceded by an index term. ... \index{foo}>Bar< ... A minimal example is available at http://drifted.in/other/sample.tex I cannot place the space character between these two parts (which helps) as I sometimes need to join this and the previous phrase with the non-breaking space. Any idea how to fix this? Thanks, Jan