duplicate property in css

In the gigpress.css file I see the following:

/* Notices for Cancelled or Sold Out shows */
strong.gigpress-cancelled, strong.gigpress-soldout {
        text-transform: uppercase;
        font-weight: bold;
        padding: 1px;
        color: #111;
        background: #fffdeb;
        border: 1px solid #EEE;
        background: #111;
        color: #FFF;
        border: none;
}

You can see that the last 3 properties are repeated but with different values the 2nd time. This looks like an error. This will be reported as an warning by csslint in the code editor in the next version of WordPress (4.9).