Bug#810212: segfaults when using as unison-2.40 to sync with a jessie system

[Enrico Zini <enrico@debian.org>]

Package: unison
Version: 2.48.3-1
Severity: important

Hello,

thank you for maintaining unison.

It seems unison is not able to sync to a jessie system anymore:

   $ unison irclogs
   Contacting server...
   Fatal error: Received unexpected header from the server:
    expected "Unison 2.48\n" but received "Unison 2.40\n\000\000\000\000\017", 
   which differs at "Unison 2.40".
   This can happen because you have different versions of Unison
   installed on the client and server machines, or because
   your connection is failing and somebody is printing an error
   message, or because your remote login shell is printing
   something itself before starting Unison.
   $ # <flow hits a speed bump> <curses>
   $ unison-2.40 irclogs
   (�qhrSegmentation fault
   $ # <cries>

I don't quite know what to do at this point; also, there seems to be no
2.48 backport for jessie.

Enrico


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

Kernel: Linux 4.2.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages unison depends on:
ii  libc6  2.21-6

Versions of packages unison recommends:
ii  openssh-client [ssh-client]  1:7.1p1-5

Versions of packages unison suggests:
ii  unison-all  2.48+1

-- no debconf information