What version are you running?
6.0.2

What's the URL of the page this enhancement relates to, if any?

Describe the enhancement and the motivation for it.
A reviewer gives a "Ship it", another reivewer gives a "Fix it".  During fixing the problem the developer realizes the fix is big, and want a total new review; and wants to be able to remove the "Ship it" so a new one must be given.
What operating system are you using? What browser?
Mac, Chrome

Please provide any additional information below.