2.3.1 TSX spread with union types

[kryops]

TypeScript Version: 2.3.1, 2.4.0-dev.20170427

Code

type Foo = { foo: string }
type Bar = { bar: string }
type Baz = { baz: string }

type FBB = Foo | Bar | Baz

declare const obj: FBB

const FbbComponent = (props: FBB) => (
    <div>{JSON.stringify(props)}</div>
)

const comp1 = React.createElement(FbbComponent, { ...obj }) // works
const comp2 = <FbbComponent {...obj as Foo} /> // works
const comp3 = <FbbComponent {...obj} /> // does not work

Expected behavior:

Compiles without errors

Actual behavior:
Error:

Type '{}' is not assignable to type '(IntrinsicAttributes & Foo) | (IntrinsicAttributes & Bar) | (IntrinsicAttributes & Baz)'.
  Type '{}' is not assignable to type 'IntrinsicAttributes & Baz'.
    Type '{}' is not assignable to type 'Baz'.
      Property 'baz' is missing in type '{}'.

[mhegazy]

This is a duplicate of #14112, #15420, #13557, and #14409 fixed by #13288.

[mhegazy]

Automatically closing this issue for housekeeping purposes. The issue labels indicate that it is unactionable at the moment or has already been addressed.