Component state leakage

I found an issue with the state of a component in preact, for example:

render(
    <Parent>
        <Child />
    </Parent>,
    document.body
)

class Parent extends Component {
     componentDidMount() {
          this.setState({FUBAR: true})
     }

     render() {
         return this.props.children
     }
}

class Child extends Component {
     render() {
         console.log(this.state) // <-- {FUBAR: true}, not undefined or {}
         return null
     }
}

As you can see, Parent leaks its state to Child because the default state object is reused across all components.

[ritz078]

working great 👍

[developit]

Alright, let’s prioritize this then, it’s just too strange to leave open.