[NTG-context] rightaligned formulas stick out in the margin

Hi! Look at the following example (pdf attached) \setupformulas[ align=flushleft, leftmargin=3em, ] \starttext \input tufte % Some text to see where the margin is This looks OK: \startformula 1+1=2 \stopformula This does not look OK: \startformula 1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1=19 \stopformula This looks OK again: \startformula \startalign \NC 1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1=19\NR \stopalign \stopformula \stoptext The result is attached. I would expect the second display math to behave as the third, i.e. move to the left so that it fits. As a workaround I can put every problematic formula I have in aligns, but I have a feeling this might be a bug. /Mikael