Can't remove routeData from a module once added

[viridia]

I'm getting a funny routeData error: Uncaught SyntaxError: The requested module '/src/routes/t.tsx?data' does not provide an export named 'routeData' - thing is, that particular module doesn't use any route data, so there's no need for it. I guess I had routeData at one point and then deleted it later. Adding an empty routeData makes the error go away, but that's only a temporary workaround.