message: Fixed a bug in during toggleTab
diff: @@ -93,7 +93,7 @@ export class CodeSnippetComponent implements OnInit {
  module.shootConfetti()
  })
  .then(() => {
  - if (this.tab.value === 0) this.toggleTab(1)
  + if (this.tab.value === 0 && this.fixes !== null) this.toggleTab(1)
  })
  } else {
  this.result = ResultState.Wrong
  