Backend crashes with notification rule

I have this on 8.0dev (checked out last friday):

yomama=# SELECT version();
version
---------------------------------------------------------------------------
PostgreSQL 8.0devel on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.4.0
(1 Zeile)

yomama=# CREATE TABLE test (test text);
CREATE TABLE

yomama=# CREATE RULE rule_insert_test AS ON INSERT TO test DO NOTIFY
test_notification;
CREATE RULE

yomama=# INSERT INTO test VALUES ('test');
Server beendete die Verbindung unerwartet
Das heißt wahrscheinlich, daß der Server abnormal beendete
bevor oder während die Anweisung bearbeitet wurde.
Die Verbindung zum Server wurde verloren. Versuche Reset: Fehlgeschlagen.
!>

With assert check enabled, i got this in the logfile:

TRAP: FailedAssertion("!(n < list->length)", File: "list.c", Line: 392)
LOG: server process (PID 18637) was terminated by signal 6
LOG: terminating any other active server processes

Sorry for the german locale .....

--
Bernd