[pkg-netfilter-team] Bug#913811: iptables fails to upgrade from 1.8.1-2 to 1.8.2-1

[Jon]

Package: iptables
Version: 1.8.2-1
Severity: important

Dear Maintainer,

During an upgrade from 1.8.1-2 to 1.8.2-1 I got the following error:

Setting up iptables (1.8.2-1) ...
ln: failed to create symbolic link '/sbin/iptables': File exists
dpkg: error processing package iptables (--configure):
 installed iptables package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 iptables
needrestart is being skipped since dpkg has failed
E: Sub-process /usr/bin/dpkg returned an error code (1)

Downgrading the package back to 1.8.1-2 fixed it. Manually deleting the
files from /sbin also allows the 1.8.2-1 package to install.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.18.0-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
LSM: AppArmor: enabled

Versions of packages iptables depends on:
ii  libc6                    2.27-8
ii  libip4tc0                1.8.2-1
ii  libip6tc0                1.8.2-1
ii  libiptc0                 1.8.2-1
ii  libmnl0                  1.0.4-2
ii  libnetfilter-conntrack3  1.0.7-1
ii  libnfnetlink0            1.0.1-3+b1
ii  libnftnl7                1.1.1-1
ii  libxtables12             1.8.2-1

iptables recommends no packages.

Versions of packages iptables suggests:
ii  kmod  25-1

-- no debconf information