TypeScript: 3.8 RC Regression? "Individual declarations in merged declaration"

TypeScript Version: 3.8.1-rc and nightly (3.8.0-dev.20200207)

Search Terms: Individual declarations in merged declaration

Code Two files:

// ns.ts
export type Type = {greet: string}

export function hello(input: Type) {
  console.log(input.greet)
}

// use.ts
import * as Greeting from './ns'

export type Greeting = Greeting.Type
export {Greeting}

Expected behavior: Expected that this compiles and users can refer to Greeting as both the type {greet: string} and the namespace of functions/data (just hello in this case). In versions 3.7.5 and 3.8.0-beta, this was OK.

Actual behavior: 3.8.1-rc and current nightly produce these errors:

use.ts:1:13 - error TS2395: Individual declarations in merged declaration 'Greeting' must be all exported or all local.

1 import * as Greeting from './ns'
              ~~~~~~~~

use.ts:3:13 - error TS2395: Individual declarations in merged declaration 'Greeting' must be all exported or all local.

3 export type Greeting = Greeting.Type
              ~~~~~~~~