This has been fixed in cdebconf/0.258 See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=987449 So closing these bugs. -- Holger Wansing <hwansing@mailbox.org> PGP-Fingerprint: 496A C6E8 1442 4B34 8508 3529 59F1 87CA 156E B076