double parse tags

src/api/quiz.js

@@ -300,7 +300,7 @@ module.exports = {
             left join quiz_position on quiz_position.quiz_id = quiz.id
             WHERE user_position_id=(SELECT position_id from users WHERE id=?) and end_date>=CURDATE() && start_date<=CURDATE();`, [args.userID])).map(q=>{
                 try{
-                    q.tags = JSON.parse(q.tags);
+                    q.tags = JSON.parse(JSON.parse(q.tags));
                 }catch (e) {
                     console.error('Can not parse tags');
                 }