gnupg refuses to download RSA keys when the fingerprint is used:
pub 1024R/3C620D2D 1993-12-23 Marco d'Itri <md@linux.it>
Impronta digitale = 84 54 6C EC 5B 42 56 1B FB B6 32 7B F2 FD 4F B2
$LANG= gpg --recv-key 0x84546CEC5B42561BFBB6327BF2FD4FB2
gpg: Total number processed: 0
[Exit 2]
$
--
ciao,
Marco