The network title option is sticky on a fresh vanilla installation

Steps to reproduce:

1. `composer create-project altis/skeleton my-project`
2. `composer server`
3. Visit https://my-project.altis.dev/wp-admin/network/settings.php and change the network title
4. Observe that the change does not stick

This appears to only affect the network title, I've not noticed it anywhere else.

Changing the network title via WP-CLI with `composer server cli -- network meta update 1 site_name Foo` works as expected.