Errors are not removed when retrying a navigation query

1. Make poor life choices, such as filtering two million elements by classification confidence to cause an HTTP 502 error (or just shut down your local dev server).
2. Change the filters in the filter bar to something nicer (only include top-level elements for example) and then press Enter to cause another API request to be made, which will not fail.
3. The 502 error is still shown, even though the dev tools say the request has returned a HTTP 200.
4. Cry.