Bug#1013333: libidn12: Upgrade to libidn 1.40-1 breaks kmail

[Steve M. Robbins]

Package: libidn12
Version: 1.40-1
Severity: important

Dear Maintainer,

I had version 1.38-4 installed until I ran apt upgrade today.  After the 
upgrade, mail that originated
outside of my system seems to vanish.  The mail logs show a normal delivery (by 
postfix).  But kmail shows
no sign of the mail.  Nor does my android mail client that uses imap to read 
the same mailbox.

I downgraded libidn12 back to 1.38-4 (with NO other changes to packages or 
configuration) and kmail is working again.


-- System Information:
Debian Release: bookworm/sid
  APT prefers unstable
  APT policy: (700, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.18.0-2-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, 
TAINT_UNSIGNED_MODULE
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_CA:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libidn12 depends on:
ii  libc6  2.33-7

libidn12 recommends no packages.

libidn12 suggests no packages.

-- no debconf information