Total of grades doesn't update when you add a random question from question bank

1. Create a quiz. 2. Go do the edit page. 3. Click on the Add random question button on Page 1. 4. Click the Add random question button in the pop-up dialogue. Verify that after this, Total of grades at the top of the page is 1.00 5. Click on the Add random question button on Page 1 again. 6. This time click the 'Create category and add random question' having typed in a category name. 7. Verify the total grade is now 2.00.