Cloning a Metabox Group item results in 'property content is undefined'

Hi Anh,

No that's not the case.

https://pastebin.com/raw/9TeLAcN5

Hi Anh,

I've downgraded to version 1.2.8 and now it is al working fine.
The code below is the one that works.

/**
     * Update group title.
     *
     * @param index   Group clone index.
     * @param element Group element.
     */
    group.toggle.updateTitle = function ( index, element ) {
        var $group = $( element ),
            $title = $group.find( '> .rwmb-group-title, > .rwmb-input > .rwmb-group-title' ),
            options = $title.data( 'options' ),
            content = '';

        function processField( fieldId, separator ) {
            separator = separator || '';

            var $field = $group.find( ':input[name*="[' + fieldId + ']"]' ),
                fieldValue = $field.val();

            if ( $field.is( 'select' ) ) {
                fieldValue = $field.find( 'option:selected' ).text();
            }

            if ( fieldValue ) {
                content += ( content ? separator : '' ) + fieldValue;
            }

            // Update title when field's value is changed.
            if ( ! $field.data( 'update-group-title' ) ) {
                $field.on( 'keyup change', _.debounce( function () {
                    group.toggle.updateTitle( 0, element );
                }, 250 ) ).data( 'update-group-title', true );
            }
        }

        if ( 'undefined' === typeof options || 'undefined' === typeof options.type ) {
            return;
        }

        if ( 'text' === options.type ) {
            content = options.content.replace( '{#}', index );
        }
        if ( 'field' === options.type ) {
            var fieldId = options.field;

            // Multiple fields.
            if ( -1 !== fieldId.indexOf( ',' ) ) {
                options.separator = options.separator || ' ';
                var fieldIds = fieldId.split( ',' );
                fieldIds.forEach( function ( value ) {
                    processField( value.trim(), options.separator );
                } );
            } else {
                processField( fieldId );
            }
        }
        $title.text( content );
    };

Hi Anh,

Works like a charm! Are you including this fix in the next update?