I won't be able to review the patch I'm afraid but there is an important point that's not been raised so far in this discussion i.e. how will this be used by teachers?
Will it depend upon a role override or will there be an setting for the quiz. As many teachers won't be allowed access to overrides ("safe" or otherwise) this (excellent) new option will go to waste. Having an option that is role specific somewhat compromises the roles interface logic i.e. that's where you go to configure permissions....
Quiz
Suggestion for a new capability
This discussion has been locked so you can no longer reply to it.