In the exercise parameter there is a checkbox "Review my answers".
When it is selected we have at the end of every question in the quiz a checkbox with "Revise question later" and this is working fine.

Getting to the last question it shows the button "Review selected questions".
But when clicking on this button it does not show the list of question, it goes directly to the result page. It should show the list of question with the question already selected for review and in red the not answered questions and have a button to return to the questions.