Sphinx config `navigation with keys` removes links to Github

[Jørgen Schartum Dokken]

Describe the bug

context
When I add navigation_with_keys: True or False to

sphinx:
  config:
    html_theme_options:
      navigation_with_keys: true

in _config.yml, the repository buttons dissapear

expectation
I expected Github repository buttons to appear if they are set to true.

bug
But instead they disappear.

Reproduce the bug

1. Install jupyterbook (I use venv with the following commands)

python3 -m venv --clear ./test_jb
source test_jb/bin/activate
python3 -m pip install jupyter-book

2. Create book template

python3 -m jupyter book create test_book

3. Test building

 python3 -m jupyter book build .

which gives

4. add

sphinx:
  config:
    html_theme_options:
      navigation_with_keys: true

to config and rebuild. Returns

List your environment

 python3 -m jupyter book --version
Jupyter Book      : 0.15.1
External ToC      : 0.3.1
MyST-Parser       : 0.18.1
MyST-NB           : 0.17.2
Sphinx Book Theme : 1.0.1
Jupyter-Cache     : 0.6.1
NbClient          : 0.7.4

Python 3.10.12
Ubuntu 22.04

[Jørgen Schartum Dokken]

Any news regarding this?