Quiz settings reset every time after questions added

Problem/Motivation

Hi,

I noticed a individual quiz settings are constantly resetting, for example the
Taking options or question feedback checkboxes state are resetting after a while from checked to uncheked.
The reason was every time quiz questions randomization values are saved from the url
/quiz/832/questions
The mentioned quiz settings are reset.

Steps to reproduce

1. create quiz and select some settings like "allow backwards navigation"
2. add randomization questions "Quiz terms"
3. go to change the amount of randomized questions from the "Questions" -tab. and click save
4. now the quiz settings should be reset to zero

There is no problem when the ranomized questions amount is changed from the "Edit" tab from URL
/quiz/832/edit

So in my case I just avoid the "Questions" tab

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes