It seems cloneNodePrepare() is currently broken in the recent 2.0 branch 
(looks like 2.0.3 RC2 has this also). The function is declared to return 
int4, however, calling createEvent() within the function is supposed to 
return bigint.

create or replace function @NAMESPACE at .cloneNodePrepare (int4, int4, text)
returns int4
...

Maybe this is an oversight in the last efforts to change functions 
returning event numbers to bigint?

-- 
Thanks

	Bernd