Bad stats.wp.com URL being generated

We’re seeing errors when trying to load https://stats.wp.com/s-<date&gt;.js.

The URL being generated does look bad:

<script async defer src='https://thedomain.com/wp-content/plugins/jetpack/https://stats.wp.com/s-202029.js'></script>

I can replicate the generation of the bad URL by running wp eval-file against the following code:

$filename = sprintf(
            'https://stats.wp.com/s-%d.js',
            gmdate( 'YW' )
        );
var_dump(Automattic\Jetpack\Assets::get_file_url_for_environment( esc_url( $filename ), esc_url( $filename ) ) );