[metapost] another pensquare bug

[Taco Hoekwater]

Stephan Hennig wrote:
> Andreas Matthias schrieb:
>> Stephan Hennig wrote:
>>> Good! Has anyone been able to reproduce the bug with v1.001? Or is
>>> my set-up just broken?
>> I can reproduce it with 0.993.
> 
> Thank you!  I was a bit irritated, since the 1.003rc announcement
> contains this:
> 
>> * Polygonal pens now work better (bug #3 and #7 at supelec.fr).
> 
> But I couldn't find a report of a crashing MetaPost there.
> 
> <URL:http://foundry.supelec.fr/tracker/index.php?func=detail&aid=3&group_id=13&atid=129>
> <URL:http://foundry.supelec.fr/tracker/index.php?func=detail&aid=7&group_id=13&atid=129>

Afaik, there never was an actual crash reported, just wrong output.
Unfortunately, it is possible that the fix that removes this crash
is itself the cause of the hanging of 1.003 on that other input file.

Best wishes,
Taco