Start Abschnitt 4: Debugging Flutter Apps - 93

lib/questions_summary/summary_item.dart

@@ -22,7 +22,7 @@ class SummaryItem extends StatelessWidget {
         children: [
           QuestionIdentifier(
             isCorrectAnswer: isCorrectAnswer,
-            questionIndex: itemData['question'] as int,
+            questionIndex: itemData['question_index'] as int,
           ),
           const SizedBox(width: 20),
           Expanded(

lib/quiz.dart

@@ -36,6 +36,7 @@ class _QuizState extends State<Quiz> {
 
   void restartQuiz() {
     setState(() {
+      _selectedAnswers.clear();
       _activeScreen = 'questions-screen';
     });
   }