[NTG-context] brace error after a \placefigure

[Sanjoy Mahajan]

I can't figure out what causes the brace error with this test.tex
example file:

\starttext
\placefigure[margin]{A caption}{\externalfigure[]}

{test}.
\stoptext

$ texexec test
  [...]
  ! Too many }'s.
  l.4 {test}
	    .
  ? H
  You've closed more groups than you opened.
  Such booboos are generally harmless, so keep going.

If I change 

{test}.

to

The {test}.

then it compiles fine.

$ texexec --version

 TeXExec 5.4.3 - ConTeXt / PRAGMA ADE 1997-2005

               texexec : TeXExec 5.4.3 - ConTeXt / PRAGMA ADE 1997-2005
               texutil : TeXUtil 9.0.1 - ConTeXt / PRAGMA ADE 1992-2006
                   tex : pdfeTeX, 3.141592-1.21a-2.2 (Web2C 7.5.4)
               context : ver: 2006.04.17 23:14
               cont-en : ver: 2006.04.17 23:14  fmt: 2006.5.10  mes: english

-Sanjoy