Bug#909023: git-annex: fail to copy file contents

[Marco Pattaro]

Package: git-annex
Version: 6.20180913-1
Severity: grave
Tags: upstream
Justification: renders package unusable

Dear Maintainer,

in short: after upgrading to version 6.20180913-1 I'm unable to sync file
contents.

My layout is a central bare repository on a machine which runs an older version
of git-annex (6.20160923-1) and anumber of client, direct, repositories all up
to date with the latest debian testing release. All repositories have
[annex]
version = 5

in their .git/config

After upgrading it fails to do any of:

$ git annex sync --content
or
$ git annex get
or
$ git annex copy

with this error message: "fd:23: hClose: resource vanished (Broken pipe)"

I'm pretty sure the issue is not in my ssh connection whish is working properly
in other contexts, nor in git because the file index is synced correctly.

Could this be an incompatibility between git-annex versions?

Thanks for the support and the great job.



-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (900, 'testing'), (800, 'stable'), (700, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.18.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages git-annex depends on:
ii  curl            7.61.0-1
ii  git             1:2.18.0-1
ii  libc6           2.27-6
ii  libffi6         3.2.1-8
ii  libgmp10        2:6.1.2+dfsg-3
ii  libmagic1       1:5.34-2
ii  libsqlite3-0    3.24.0-1
ii  libxml2         2.9.4+dfsg1-7+b1
ii  openssh-client  1:7.8p1-1
ii  rsync           3.1.2-2.2
ii  zlib1g          1:1.2.11.dfsg-1

Versions of packages git-annex recommends:
ii  aria2              1.34.0-2
ii  bind9-host         1:9.11.4+dfsg-4
ii  git-remote-gcrypt  1.1-1
ii  gnupg              2.2.10-1
ii  lsof               4.89+dfsg-0.1
ii  nocache            1.0-1
ii  youtube-dl         2018.06.18-1.1

Versions of packages git-annex suggests:
ii  adb             1:7.0.0+r33-2
pn  bup             <none>
ii  libnss-mdns     0.14.1-1
pn  magic-wormhole  <none>
pn  tahoe-lafs      <none>
ii  tor             0.3.4.8-1
pn  uftp            <none>
ii  xdot            0.9-2

-- no debconf information