Is challenge required for old and new domains?

[Demetrius Lima]

I have question about challenges of cert-manager.

Suppose that I had the following scenario, where I have two domains (domain 1 and domain2) already challenged and the certificate is issued for those.

After some time, I want to add domain 3, what will be challenged.

But now my question below.

Will domain 1 and domain 2 required to be challenge again as well?

Could you give a briefly explanation for it?

Thank you!