Checklist manage view does not update score after edit mode

How to reproduce

• Create a course with the checklist element and scoring enabled
• Create two checkboxes which both get a score
• add some users to the course
• Open course run as course author
• open checklist element, go to "manage checklist" screen
• press "edit" button to to to table edit mode
• check a checkbox of the user
• press "save"
  => checkbox is saved (and also new user score), but score is not updated in table

See screenshot