Archive signature is invalid

Paolo Pisati <[email protected]> Mon, 14 Sep 2015 09:57:24 +0200
Newsgroups gmane.linux.debian.devel.embedded
Message-ID <CAMmgNdbx75BVzDuwL5GDxZS7ijN7WskbphbLunS94Wy88S6t5A@mail.gmail.com>
$ cat /etc/apt/sources.list.d/emdebian.list
deb http://emdebian.org/debian sid  main

$ apt-key list
...
pub   4096R/1804772E 2014-11-24
uid                  Emdebian Toolchain Archive (signing key)

pub   1024D/97BB3B58 2007-04-30 [revoked: 2014-11-24]
uid                  Emdebian Archive Signing Key

$ apt-get update
...
W: GPG error: http://emdebian.org sid InRelease: The following signatures
were invalid: REVKEYSIG B5B7720097BB3B58 Emdebian Archive Signing Key


Please cc me as i'm offlist.