[web2py] debugging help. when trying to edit a record.

[niknok]

The following model and controller works fine when adding records, but
generates an error "<type 'exceptions.KeyError'>('issuer')" when I try
to edit a record. Unfortunately for me, I couldn't understand what
that error actually means, or what I missed doing.

Could someone give me a nudge forward? Thanks.

/r
Nik

code is here: http://pastie.org/1845934