Route is not retained after refresh

I'm on an internal project using `ember-cli-addon-docs@0.6.5`. When I'm looking at http://localhost:3141/docs/components/q-token-input (in Firefox) and then refresh the page it automatically takes me back to http://localhost:3141/docs/installation for some unknown reason. Visiting http://localhost:3141/docs/components/q-token-input directly has the same behavior, but navigating by using the sidebar works fine 🤔

Any ideas how to debug this?

/cc @samselikoff