Submissions table First Name sorting by id instead of First name

[x-iy]

On the submissions table, clicking First Name sort actually sorts by id instead of alphabetically due to the First Name column including html for the user link:

"aaData": [
        [
            76106,
            "<input class=\"inbox_checkbox\" type=\"checkbox\" value=\"2222222222\" name=\"check_2222222222\" \/>",
            "Lastname",
            "<a href=\"https:\/\/site.com\/user\/view.php?id=333333&amp;course=11111\">Firstname Lastname<\/a>",
             ...
        ].
        ...

The sort will be on the id=333333 instead of 'Firstname Lastname' as that is the first difference.

Last Name sort works correctly as there is no html included.