Filters whether WordPress should replace old HTTP URLs to the site with their HTTPS counterpart.

If a WordPress site had its URL changed from HTTP to HTTPS, by default this will return true. This filter can
be used to disable that behavior, e.g. after having replaced URLs manually in the database.

return apply_filters( 'wp_should_replace_insecure_home_url', $should_replace_insecure_home_url );