[$20] - N/A is not displayed for empty checkpoint responses

[sdgun]

Steps to Reproduce

• Login as a valid user

• Go to http://community-app.topcoder.com/challenges/30052058/?type=design

• Expand a checkpoint

• Go to https://www.topcoder.com/challenge-details/30052058/?type=design#checkpoints

• Expand a checkpoint

Actual Result(s)

• N/A is not displayed for empty checkpoint responses

Expected Result(s)

• N/A must display for empty checkpoint responses

Environment

• Device(s): Laptop
• Operating System: Windows 7 64bit
• Browser(s): Chrome 60.0.3112.101 (Official Build) (64-bit)

Image/Video/JS Log/Console Log (If not attached here, Please check the comments section)

[sdgun]

[birdofpreyru]

Accepted, 1 point. Let's show something like Empty feedback in a gray color in such case.