message: Log if safety first has to do its job.
diff: @@ -10,7 +10,13 @@ export class SafetyFirst<props, state> extends React.Component<props, state> {
  super(props);
  this.isMounted_ = false;
  this.setState_ = this.setState;
  - this.setState = (...args) => this.isMounted_ && this.setState_(...args);
  + this.setState = (...args) => {
  + if (this.isMounted_) {
  + return this.setState_(...args);
  + }
  + // eslint-disable-next-line no-console
  + console.debug('SafetyFirst: Not setting state because component is not mounted.');
  + };
  }
  componentWillUnmount() {
  