remove sent key? - Answered, GAs ENDED

So earlier a few of my giveaways ended, and as I checked through the winners I realized that one of them had already won the same game just yesterday. As I was sending the other winners their keys, I accidentally sent this particular person their key as well. Realizing my mistake, I clicked the "send key" button again and saw that it was now unchecked (and I also deleted the key for the time being just for good measure). Does un-checking that "send key" circle remove the key from their won page like I think it does?

EDIT: Based on the replies I've been getting, the answer appears to be yes! So thanks to everyone who replied!

Here are some GAs from past HB monthly bundles as thanks! (LV3+ with basic rules)