Trivial to make PArr panic

Hi,
not directly a bug-report, but kind of a meta-bug-question:

Is anyone interested in bug-reports about PArr, or is it a case
of "completely broken, go fix it yourself"?
I do not need it, but was playing around with it and found that
both CVS and 6.2.1 panic even on something as simple as
[: 1 | k <- [: 1 :] :]

Happy hacking,
Remi

-- 
Nobody can be exactly like me. Even I have trouble doing it.