gpg: Improve public key decryption
Testing, WishlistPublic

Description

In g10/mainproc.c, the function proc_pubkey_enc has this comment:

/* FIXME: Store this all in a list and process it later so that
   we can prioritize what key to use.  This gives a better user
   experience if wildcard keyids are used.  */

Indeed. The c->dek should be filled in the function proc_encrypted choosing the best key.