I've tried dozens of different ways to get this working but its just not happening.
Steps to reproduce:
create list
create element type field, in default change to {my->id} and change to int type call it userid.
Add repeating group with 1 additional field element
edit list, change Primary Key on Data tab to the userid field and turn off auto increment.
Now try to add a record, the parent_id field is always 0. I tried turning off Hidden in parent_id and putting {my->id} in the default field. It shows fine the userid fine, but still stores 0.
Steps to reproduce:
create list
create element type field, in default change to {my->id} and change to int type call it userid.
Add repeating group with 1 additional field element
edit list, change Primary Key on Data tab to the userid field and turn off auto increment.
Now try to add a record, the parent_id field is always 0. I tried turning off Hidden in parent_id and putting {my->id} in the default field. It shows fine the userid fine, but still stores 0.