Feedback: Non required question types don't submit if empty

Create a feedback Add radio multichoice questions with and without "not selected" option Add multichoice rated questions with and without "not selected" option Complete feedback as a student and try submitting with and without filling the answers View feedback responses as a teacher and make sure they are exactly what student answered (Delete student response as a teacher so student can repeat submission with different answers) The patch did not modify multichoice question in checkbox or dropdown format but you can make sure that they continue to work as before