When hovering over the badge progress in the review queue, one is able to see his progress towards the badges of a particular review type, as well as Civil Duty, Electorate and Copy Editor. Now, I have the Copy Editor badge on my SO account, however it's progress in the review queue looks like this:
which is wrong since it shows the wrong number.
413posts and Copy Editor requires 500 edited posts (excluding retag). So you are not eligible to get Copy Editor badge. I think badge-progress is okay. But you earned Copy Editors badge wrongly(by mistake-bug). It should be a bug.