Fix "show incorrect questions" that shows correct questions

Idea created by ta0042817 on Jan 30, 2018
    Under review

    There is currently a known issue where when you select the test feedback option  "show incorrect questions", shows the questions the students got correct in addition to those they got incorrect. This is a crucial feature to have working as intended for our distance education courses, where instructors would like students to know what they got incorrect but at the same time protect the integrity of the questions used.

    If anyone has a workaround, it would be much appreciated!

    Product Version (if applicable):0