WooCommerce_short_description在变体上显示两次

Question

The code is working except with variations, where it's showing up twice, once under the short description and once under the price where the variation description should be. Can't find a solution to this. It's not supposed to add text to the variation description.

function addtext_woocommerce_short_description( $post_excerpt ) {
    $post_excerpt .= "<span id='fraktzon'><a href='/wp-content/uploads/fraktzon.jpg' alt='Fraktzonskarta'>Se vilken fraktzon du bor i!</a></span><br />";
    return $post_excerpt; 
};
add_filter('woocommerce_short_description','addtext_woocommerce_short_description',10, 1 );