tests/test_slice doesn't work properly

[GoogleCodeExporter]

What steps will reproduce the problem?
Run tests/test_slice

What is the expected output? What do you see instead?
I expect to see the sliced output. Instead I see a few dozen FACE LOOP ERROR 
lines in stderr.

What version of the product are you using? On what operating system?
The newest snapshot on OS X Lion.

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I'm trying to figure out how to slice objects and the tests don't work. Is this 
a known issue? Does this only happen for me?

Original issue reported on code.google.com by [email protected] on 12 Mar 2012 at 1:13

[GoogleCodeExporter]

While I'm at it, tests/test_slice_clasify produces FACE_LOOP_ERRORs as well.
As does examples/custom_collector. detail_clip aborts.

Could this be a Mac issue?

Original comment by [email protected] on 12 Mar 2012 at 1:21