ChildForm modify method does not correctly change options

[eretica]

Normal Form modify method is no issue
but ChildForm modify method is no correctly.

$parentForm->modify(
    'child_field_key',
    'text',
    array_merge($child->getOptions(), ['attr' => ['disabled' => 'disabled'])
);

avobe disabled option is not reflected

$child->setOptions('attr', ['disabled' => 'disabled'])

above 'disabled' option it will work

[rom1vtle]

yes same probleme for me!
modify method does not correctly change options on child form

[rudiedirkx]

@kristijanhusak @mikeerickson I don't use modify(). You?