I have switched from a YubiKey 4 to a YubiKey 5. Both have the same GPG keys stored. After storing the key on the first YubiKey, I fetched my public key so GPG knows where to look for the private key. Now I cannot fetch the key from the new YubiKey because the public key is already there.
How can I configure GPG so that it will find my private key on the new YubiKey? And, if it's possible, can both YubiKeys configured at the same time so I can use them both?