Agents submitting sliders with invalid number of sliders done

[KyMuC]

Agents can submit sliders with less than the required minimum done if they:

• manipulate DOM (i.e., remove disabled property on the button, or submit the form programmatically) (perhaps, not of much concern)
• wait for the timer to count down: the form will be submitted with the current number of done sliders, which can be below required