Find all references does not work for default export of ambient module

[ghost]

// declarations.d.ts
declare module "x" {
    const df: number;
    export default df;
}

// index.ts
import df from "x";

Goto-declaration works for df in index.ts, but find-all-references for df in declarations.d.ts only finds the two uses in that file.

[OliverJAsh]

I believe this is not restricted to ambient modules not all modules.

[mhegazy]

Seems to be working in latest.