[pkg-gnupg-maint] Bug#846175: gnupg-agent: Cannot use/delete ssh keys w/ empty passphrase

[Matthias Urlichs]

Package: gnupg-agent
Version: 2.1.16-2
Severity: important

I have a few ssh keys with empty passphrase stored in gpg-agent.

I can't delete them; "ssh-add -d path/to/file-pub" silently fails.
So does "ssh-add -D".

I can't use them:
gpg-agent[6308]: failed to unprotect the secret key: No passphrase given

Umm, yes a passphrase *was* asked for, and given; it just happens to be
empty. So? This worked before updating my system to Testing yesterday.

I consider this to be a fairly major regression.