Bug#942373: Seahorse: GPG key import fails, the key is seen as expired

[intrigeri]

Hi,

goupille (2019-10-15):
> When trying to import (that was already imported in the past I don't
> know if that's relevant) a public pgp key (such as this one :
> https://tails.boum.org/tails-email.key), Seahorse warns the user
> that the key is expired (although it is not).
>
> Using gpg --import in the terminal works well the key is imported and the expiration date is the right one
>
> I've seen this issue with an up-to-date Debian Sid and could reproduce it with Tails-4.0~rc1

FWIW:

1. I cannot reproduce the "warns the user that the key is expired"
   part of this bug.

2. I confirm that OpenPGP import fails as tracked on #931558
   and upstream (https://gitlab.gnome.org/GNOME/seahorse/issues/236).