If a choice has the settings that the responses are limited and that a user can update the choice, there ist the following error: The user chooses an option. After that this user unenroles himself out of the course. In the choice is the taken option of this user not visible any more. The text under the taken option displays also "Taken:0". But the possible choices of this option are still limited as if the taken option of this user would still count. A look in the database shows that the taken option of this user is still availible in the table "choice_answers".

If a user unenroles from a course, then should his taken options in answers of this course be deleted.