Node Edit Panel: Cannot use object of type ctools_context as array

I'm using node edit panels and one of my content types is getting a fatal error:

"PHP message: PHP Fatal error: Cannot use object of type ctools_context as array in /sites/all/modules/contrib/panels/panels.module on line 1124"

Checking the code, there appears to be a typo:

if (empty($form_context->form['#theme_wrappers']) || !in_array('form', $form_context->form['#theme_wrappers'])) {
    $form_context['#theme_wrappers'][] = 'form';
}

Should be:

if (empty($form_context->form['#theme_wrappers']) || !in_array('form', $form_context->form['#theme_wrappers'])) {
    $form_context->form['#theme_wrappers'][] = 'form';
}