[dev-context] mkiv and metapost

[Aditya Mahajan]

Hi,

Something is broken in the interaction between metapost and mkiv. The 
minimal example here gives me an empty pdf.

\starttext \startMPcode
draw fullcircle scaled 1cm;
\stopMPcode \stoptext

The metapost figure is created, but for some reason not is not being 
included. Doing an explicit \externalgraphics[filename-mpgraph.1] gives

mp-test-mpgraph.1
!luaTeX error: internal error: unknown image type
  ==> Fatal error occurred, no output PDF file produced!

I am using luatex snapshot-0.23.0-2008031110 and ConTeXt 2008.03.04

Aditya