"'propTypes' is already defined"

[agilgur5]

I happen to have a file with two classes in it:

class MyClass1 extends Component {
 static propTypes = { ... }
 ...
}

class MyClass2 extends Component {
  static propTypes = { ... }
  ...
}

and standard is throwing "'propTypes' is already defined" on the second declaration, even though they're only defined within the scope of the class, not globally, so this seems like a bug to me

Not 100% sure which dependency/rule may be causing this
Edit: seems like this occurs for any file with multiple classes in it that have static properties with the same name (like propTypes)

[dcousens]

Sounds like eslint?

[agilgur5]

Seems like it wasn't eslint (eslint/eslint#6635), but a regression in babel-eslint (babel/babel-eslint#337) that was fixed 2 days ago with 6.1.2; so not a direct dependency