I used these steps when attempting to reproduce your issue. But I could not reproduce it.
- Install Hugo 0.48
hugo new site example.comcd example.comgit initgit submodule add https://github.com/budparr/gohugo-theme-ananke.git themes/ananke- Open
config.tomland add linetheme = "ananke" hugo new posts/my-first-post.mdhugo server -D- Open
config.tomland edit linetitle = "My New Hugo Site"to betitle = "My New Hugo SiteZ"