Testing some methods to convert a WordPress site into a static site, I ran into a weird problem when converting the links (using -k or --convert-links in wget) was breaking the mirroring process, putting in the wrong links.
My mirror command was simply:
wget -m -k -nH example.com
The link conversion ended up breaking the internal links – a link like:
<a href="about/index.html">[ About ]</a>
… was being converted into
<a href="index.html?p=2">[ About ]</a>
I was a bit stumped until I noticed that the About page contained the following HTML:
<link rel='shortlink' href='https://example.com/?p=2' />
Removing the shortlink by simply adding the following line to wp-config.php (although it should probably go in the theme) fixed the problem:
remove_action('wp_head', 'wp_shortlink_wp_head');
My guess is that wget sees the shortlink declaration and tries to helpfully rename the files to match, but this ends up just breaking the link conversion, rendering the mirror useless.