the_archive_title() doesn't output the author's display name if that author hasn't posted

[henry.wright]

In my archive.php template, if I do this:

get_header();
the_archive_title( '<h1>', '</h1>' );
// Rest of code...

and then take a look at example.com/author/joebloggs, I expect to see:

Author: Joe Bloggs

The problem is if joebloggs hasn't posted yet, I see this:

Author:

[henry.wright]

I've traced the issue back to the use of the $authordata global, which is used inside get_the_author().

Dumping $authordata in the author template and then visiting a user's archive I get either an object of type WP_User (for users who have posted) or null (for users who haven't posted).

[henry.wright]

37202.diff uses get_the_queried_object() to output the author's display name on author archives. Now, the_archive_title() will output a title even if the author hasn't posted.