"gpg: signing failed: Invalid length" when use brainpool512r1 keys to sign things

[NIIBE Yutaka]

mlnl <mlnl at mailbox.org> wrote:
>> gpg: signing failed: Invalid length
>> gpg: make_keysig_packet failed: Invalid length
>> Key generation failed: Invalid length
>
> tested & confirmed with GnuPG 2.2.10, libgcrypt 1.8.3 Debian Stretch 9.5

Not reproducible here (similar on Debian Stretch).

I tested with no configuration.

Is it reproducible under no configuration?

I tested with:

	$ export GNUPGHOME=/tmp/g; mkdir -m=0700 $GNUPGHOME
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