Error when duplicating nested multicolumnwizard

[theDyingMountain]

If I want to duplicate an nested multicolumnwizard, the field does not exists in the global DCA array. So I got the exception in https://github.com/menatwork/contao-multicolumnwizard-bundle/blob/master/src/EventListener/Mcw/CreateWidget.php#L93

My dca code:

'inputType' => 'multiColumnWizard',
    'save_callback' => array(array('Zmyslny\WrapperTags\EventListener\ContentListener', 'onSaveCallback')),
    'eval' => array
    (
        'mandatory' => true,
        'dragAndDrop' => true,
        'columnFields' => array
        (
            'tag' => array
            (
                'label' => &$GLOBALS['TL_LANG']['tl_content']['wt_tag'],
                'inputType' => 'select',
                'options_callback' => array('Zmyslny\WrapperTags\EventListener\ContentListener', 'getTags'),
            ),
            'attributes' => array
            (
                'label' => &$GLOBALS['TL_LANG']['tl_content']['wt_attribute'],
                'exclude' => true,
                'inputType' => 'multiColumnWizard',
                'eval' => array
                (
                    'tl_class' => 'attributes',
                    'dragAndDrop' => true,
                    'allowHtml' => false,
                    'columnFields' => array
                    (
                        'name' => array
                        (
                            'label' => &$GLOBALS['TL_LANG']['tl_content']['wt_attribute_name'],
                            'inputType' => 'text',
                            'exclude' => true,
                            'eval' => array('allowHtml' => false)
                        ),
                        'value' => array
                        (
                            'label' => &$GLOBALS['TL_LANG']['tl_content']['wt_attribute_value'],
                            'inputType' => 'text',
                            'exclude' => true,
                            'eval' => array('allowHtml' => false)
                        ),
                    ),
                ),
            ),
            'class' => array
            (
                'label' => &$GLOBALS['TL_LANG']['tl_content']['wt_class'],
                'exclude' => true,
                'inputType' => 'text',
                'eval' => array('allowHtml' => false)
            )
        )

[zonky2]

same at current MCW? which Version of Contao and PHP?