In moodle 2.2, when moving a question in the question bank, from one category to a subcategory, using the move question icon, an error occurs:

otice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 112 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 123 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 126 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 112 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 123 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 126 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 112 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 123 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 126 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 112 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 123 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 126 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 112 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 123 Notice: Undefined index: fraction in /var/www/question/type/multichoice/edit_multichoice_form.php on line 126

You can move questions into different categories using the edit question form, it is only with the specific move question form that this occurs.