gpg: Put the first key in candidates correctly.
* g10/getkey.c (get_best_pubkey_byname): After the call of get_pubkey_byname, set up CTX with KEYDB_SEARCH_MODE_LONG_KID to enter the loop.
- Fixes-commit: 7535f1d47a35e30f736f0e842844555f7a4a9841
- GnuPG-bug-id: T4713
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>