c067d295_nuPG_Commands___Key_Management__en_revoked_and_unrevoked_keys_
[include-revoked] auto-key-retrieve
This option enables the automatic retrieving of keys from a keyserver when verifying signatures made by keys that are not on the local keyring.
GnuPG Commands - Key Management
When receiving or searching for a key, include keys that are marked on the keyserver as revoked. Note that this option is always set when using the NAI HKP keyserver, as this keyserver does not differentiate between revoked and unrevoked keys.