5.2.6
Fixed a bug in pull-down questions that if the number of questions is 1 and you set feedback for wrong answers, it won't convert.
Fixed the problem that # is not recognized as an optional item even if it is included at the beginning of question text or choices.
Fixed a bug that partial points are not valid when not showing correctness
Changed so that when there are multiple same choices on the left side of a sorted question, the correct answer is obtained by combining with either of them.
Fixed a reordering problem so that it doesn't become a correct answer by default when there are the same choices on the left side.
