Dig into Relay's param handling when new params are empty

[taion]

The workaround at

relay-todomvc/src/routes.js

Line 17 in b7fcac6

queryParams={['status']} // Inject the status param to trigger re-fetch.

is necessary to get react-router-relay to behave correctly during the loading transition, but even net of react-router-relay, Relay itself seems to return the result query with the old route parameters when I try to blank out the route parameters.

When I have a chance, I should dig into the Relay code and figure out what's going on, assuming it's not a bug in react-router-relay.

[taion]

Well, that workaround is gone, anyway, so this isn't really relevant any more.