Subject: bug#57306: guix pull to old commit fails due to unsupported manifest format

From: "(" <[email-masked]>
Date: Sat, 20 Aug 2022 11:23:56 +0100

Oops, I didn't read the issue properly and assumed it was just a
duplicate of the time-machine unsupported manifest format bug by
someone who doesn't know about the workaround (there have been a
few of those); sorry!

    -- (