I'm helping a friend build an app. He connected my repo to his Vercel account and launched but was having trouble. So I told him to delete the app from his account because I took the same repo and added to my Vercel and shared it with him. The problem is that his app got the domain https://legisurf.vercel.app/ while mine got the domain https://legisurf-nu.vercel.app/ and they are both tied to the same github repo. When I push a change to my repo it updates both domains even though we deleted his. I tried to change mine to use https://legisurf.vercel.app/ but it says that it's already taken but we can't remove it from the old app on his account because we already deleted it from his account. Please help!
