This has been fixed by shortening the text contents, thanks to translators. https://tracker.debian.org/news/1011757/accepted-partman-target-111-source-into-unstable/ So closing this bug (forgot to mention in changelog) -- Holger Wansing <hwansing@mailbox.org> PGP-Finterprint: 496A C6E8 1442 4B34 8508 3529 59F1 87CA 156E B076