pipenv: Built-in Sphinx documentation search index broken (also, search link hard to find)

First of all it’s pretty hard to find the search at all in the docs (would be useful in the sidebar) but there is a link at the bottom of the docs homepage: https://docs.pipenv.org/

Which points to this page: https://docs.pipenv.org/search/

Actually searching for something like this: https://docs.pipenv.org/search/?q=test Results in links like these which only result in 404s: https://docs.pipenv.org/en/latest/advanced?highlight=test

The problem seems to be that the search index uses the standard readthedocs urls containing the versions (/en/latest/) instead of using the root. I’m not entirely sure if this bug is restricted to this project’s configuration or if it’s an upstream bug.