Incidenntally, adding the requires you mention above makes everything work fine. Thanks!
On Oct 17, 10:26 am, mdipierro <[email protected]> wrote: > Somehow you got a string in a field that is supposed to be a > reference. My guess is that you inserted the data and than you changed > the field type. No, but without the requires the crud form didn't contain a drop-down with references. Instead I got a box and if I didn't enter something I would get the exception.

