Preventing inner form processing?

[Sebastien]

Hi all,

I have an inner form, and I would like this inner form to not being
processed when the parent form is submitted, like described here:
https://cwiki.apache.org/WICKET/conditional-validation.html

The problem, in my case, is that this inner-form is posted with
'wicketSubmitFormById', so do I not have any "submitting button" and
#findSubmittingButton naturally returns null.
But as I am processing the form using an IFormSubmitter, I would like to
write something that could looks like this (in my inner form):

    public boolean processChildren()
    {
         IFormSubmitter submitter = this.getFormSubmitter(); //!\\

        return submitter != null && submitter.getForm() == this;
    }

But I do not have any equivalent for #getFormSubmitter()...

Any ideas?

Thanks in advance,
Sebastien.