class C1 extends React.Component {

  state = {
    p1: ''
  }

  static getDerivedStateFromProps(props, state) {
    const { p1: p2 } = state
  }
}

class C2 extends React.Component { // $ Alert

  state = {
    p1: '' // $ RelatedLocation
  }

  static getDerivedStateFromProps_unmodeled(props, state) {
    const { p1: p2 } = state
  }
}