3.0 fe/be protocol bug?

I'm working on a new client with the 3.0 protocol. I'm having a problem
with the data DataRow message from this select:

select oid, datconfig from pg_database

There seems to be a problem with text[] type for datconfig. The hex
dump (from tcpflow) for 1 data row message is:

44 0000 0013 0002 0000 0005 3137303632 FFFF FFFF
D mesg len 2col col1 len5 oid 17602 len col2 here?

After FFFF FFFF the next DataRow message starts.

I'm using "PostgreSQL 7.4devel on powerpc-apple-darwin6.6, compiled by
GCC gcc (GCC) 3.1 20020420 (prerelease)" downloaded from cvs this past
weekend.

Thanks,

John DeSoi, Ph.D.