Zeoslib Portal

hi all,
my problem is with some zquery objects, and it seems to hapen when the objects are linked on a multiple master-detail configuration like this:
- master
- detail
- detail
- detail
the problem ocurrs when i try to INSERT or EDIT the last detail, the zquery makes POST automaticatly and it can't be in EDIT or INSERT mode.

we are using BDS2006, zeosdbo6.6.0, mysql4.1 but also happens with D7, zeoslib6.5.0, mysql4.1

please help.
tx.

Do you have an easy sample program (and data creation script) proving the problem? Maybe best in D7 if you want me to check.
Most easy thing would be a form with the necessary components and a button that should be pressed to cause the problem. (and an 'arrow' in the coding at the point where it goes wrong)

Mark