table field on an options page

When the table field is on an ACF options page https://www.advancedcustomfields.com/resources/options-page/

update_field does not work.

see also https://github.com/johannheyne/advanced-custom-fields-table-field/issues/10 although the thread there diverges a bit into updates and fixes that are not related strictly to options page.

see below a monkey patch to get this functionality working.

class-jh-acf-field-table.php in update_value function

function update_value( $value, $post_id, $field ) {

    if ( is_string( $value ) ) {

        $value = wp_unslash( $value );
        $value = urldecode( $value );
        $value = json_decode( $value, true );
    }

    // UPDATE via update_field() {

        if (
            isset( $value['header'] ) OR
            isset( $value['body'] )
        ) {

            // try post_meta
            $data = get_post_meta( $post_id, $field['name'], true );

            // try term_meta
            if ( empty( $data ) ) {

                $data = get_term_meta( str_replace('term_', '', $post_id ), $field['name'], true );
            }

            // begin monkey patch for options table
            // error_log('acftf-monkeypatch.post_id' . json_encode($post_id));
            // error_log('acftf-monkeypatch.field[name]' . json_encode($field['name']));

            //try options
            if ( empty( $data ) AND
                    ( $post_id = 'options' OR
                    $post_id = 'option'
                    )
                ) 
            {
                $data = get_option('options_' . $field['name']);
                // error_log('acftf-monkeypatch option data: ' . json_encode($data));
            }

            // end monkey patch

            // prevents updating a field, thats data are not defined yet