Johan,
> I just did an upgrade from an old snapshot (may 2004) and now I have
> problems with updating an issue (query error) and post
> internal notes
> doesn't work either (it doesn't save it).
>
> I did database upgrade and stuff in upgrade-foler and other things
> seems to be working well.
>
> Known problem? How do I debug?
>
Yikes. We didn't add support for an upgrade from the old snapshots
into 1.2.2, so that's why it's not working.
Send us your error_handler.log and we will give you the missing SQL
statements.
--Joao