Adding blockquote to format or styles options in CK Editor 4.5

Question

I'm trying to add a new format or style option in CK Editor which inserts a blockquote with a class.

I have added several custom formats and styles and have no problems, but when trying to create one where the element is set to blockquote, it doesn't work.

The format dropdown does display the option, but the option does not work. The styles dropdown doesn't even show the option.

My javascript is below, and here is a JS Fiddle to demonstrate:

CKEDITOR.replace('editor1', {
format_section: {
    name: 'Section',
    element: 'section'
},
format_blockquote: {
    name: 'Blockquote',
    element: 'blockquote',
    attributes: {
        class: 'test-class1'
    }
},
format_tags: 'p;section;blockquote',
stylesSet: 'custom_styles'
});

CKEDITOR.stylesSet.add('custom_styles', [
// Block-level styles
{
    name: 'Red Title',
    element: 'h3',
    styles: {
        'color': 'Red'
    },
    attributes: {
        'class': 'test'
    }
},
{
    name: 'Bquote',
    element: 'blockquote',
    styles: {
        'color': 'Red'
    },
    attributes: {
        'class': 'test'
    }
},

// Inline styles
{
    name: 'Marker: Yellow',
    element: 'span',
    styles: {
        'background-color': 'Yellow'
    },
    attributes: {
        'class': 'test'
    }
},
{
    name: 'Bquote inline',
    element: 'blockquote',
    styles: {
        'background-color': 'Yellow'
    },
    attributes: {
        'class': 'test'
    }
}
]);

Note: I already have the default quote button enabled and we use that for our default quote styles.