Subject RE: [IBO] FieldByName('PKEYFIELD').AsString:='XYZ' no longer works
Author Tobias Giesen
> If you mean that the dataset is not automatically
> going into edit or insert mode and accepting the
> assigned value, then this is a known problem with
> the Fm and Fn releases.

That could be it. What confused me is that only the first of these kinds
of assignments fails without warning, while the immediately following
assignment does its job.