Argument name completion for "children" unexpectedly contains []

<img width="416" alt="Screenshot 2022-04-04 at 21 50 51" src="https://user-images.githubusercontent.com/1078012/161629986-d53f23d7-febf-4135-85b6-63ec70d2ec7d.png">

```dart
final a = Stack(childre: CustomPaint());
```

Using Flutter 2.13.0-0.0.pre.195