[NTG-context] Columns page-break problem

[Sanjoy Mahajan]

Probably worth sending a complete minimal example, and then someone
who knows about columns might be able to help.  

I don't know anything about them, but I tried the example below using
the latest context.  The last page (page 22) looks a bit strange: two
lines in one column, one line in the third column.  But I don't see a
better solution to the layout problem.  The 'a' is on the final page
too, so there was no page spurious break.

\starttext
\startcolumns
\dorecurse{100}{\input tufte}
\stopcolumns
a
\stoptext

-Sanjoy

`Not all those who wander are lost.' (J.R.R. Tolkien)