Unexpected compiler error occurs on PascalCase type names

[cometkim]

with v11.0.0-rc.8

type \"A" = {foo: int}

let fn = ({foo}) => {
  foo
}

File "jscomp/ml/env.ml", line 909, characters 26-32: Assertion failed

playground link

[zth]

Is this a new issue?

[cometkim]

No. It also happens in v9.x.

Maybe it was there from the beginning of the new syntax

[zth]

Definitely sounds like it.