message: Don't subscribe in PaneComponent.render to avoid a memory leak.
diff: @@ -59,10 +59,6 @@ export class PaneComponent extends React.Component<Props, {}> {
  const lastJob = _.last(this.props.session.jobs);
  const lastJobInProgress = lastJob && lastJob.status === Status.InProgress;
  - if (lastJob) {
  - lastJob.once("end", () => this.forceUpdate());
  - }
  -
  const promptComponent = lastJobInProgress ? undefined : <PromptComponent
  key={this.props.session.jobs.length}
  ref={component => { this.promptComponent = component!; }}
  