Blender Crash (dupliframe metacube on curve)

Have been experimenting with meta-objects, but came across this:

In Blender 2.33
Add bezier curve
Add meta cube
Parent meta cube to curve
Set curve to “curve path” and “curve follow”
Set length to 5
Select meta cube
Click on dupliframes

Everything works fine until I try to render, and then it pauses and crashes.

I tried the same thing in 2.32, without a problem

Is this a bug or something? Any ideas?

why would you dupliframe something on a path and not make it real?

however, it seems this is a problem with meta objects dupliframed

the other stuff isn’t part of the problem

this is a bug