registerForm method
Registers a subform
Implementation
@override
void registerForm(FormController? form) {
if (_subforms.contains(form)) {
log.warning("Already registered subform with name $name");
} else if (form!.parent != null) {
log.warning(
"Child form ${form.name} already has a parent ${form.parent!.name}");
}
form!._parent = this;
_subforms.add(form);
}