Bug#979214: proftpd-core not installable in sid

[Thorsten G.]

Package: proftpd-core
Version: 1.3.7a+dfsg-8
Severity: important

Dear Maintainer,

it seems to me that the package is uninstallable. During setup following
messages appears:

Setting up proftpd-core (1.3.7a+dfsg-8) ...
cp: cannot stat '/usr/share/proftpd/templates/mod_snmp.conf': No such fi
le or directory
dpkg: error processing package proftpd-core (--configure):
 installed proftpd-core package post-installation script subprocess retu
rned error exit status 1
Processing triggers for man-db (2.9.3-2) ...
Processing triggers for doc-base (0.11) ...
Processing 1 added doc-base file...
Errors were encountered while processing:
 proftpd-core
E: Sub-process /usr/bin/dpkg returned an error code (1)

I've purged all former installed proftpd packages and try to install
only proftpd-core but that doesn't work

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable
  APT policy: (800, 'unstable'), (700, 'testing'), (600, 'stable'), (500, 'oldoldstable'), (500, 'oldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.4-towo.1-siduction-amd64 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages proftpd-core depends on:
ii  adduser            3.118
ii  debianutils        4.11.2
ii  libacl1            2.2.53-9
ii  libc6              2.31-7
ii  libcap2            1:2.44-1
ii  libcrypt1          1:4.4.17-1
ii  libhiredis0.14     0.14.1-1
ii  libmemcached11     1.0.18-4.2
ii  libmemcachedutil2  1.0.18-4.2
ii  libncursesw6       6.2+20201114-2
ii  libpam-runtime     1.4.0-2
ii  libpam0g           1.4.0-2
ii  libpcre3           2:8.39-13
ii  libssl1.1          1.1.1i-1
ii  libtinfo6          6.2+20201114-2
ii  lsb-base           11.1.0
ii  netbase            6.2
ii  sed                4.7-1
ii  ucf                3.0043
ii  zlib1g             1:1.2.11.dfsg-2

Versions of packages proftpd-core recommends:
ii  proftpd-doc  1.3.7a+dfsg-8

Versions of packages proftpd-core suggests:
pn  openbsd-inetd | inet-superserver  <none>
ii  openssl                           1.1.1i-1
ii  proftpd-mod-crypto                1.3.7a+dfsg-8
pn  proftpd-mod-geoip                 <none>
pn  proftpd-mod-ldap                  <none>
pn  proftpd-mod-mysql                 <none>
pn  proftpd-mod-odbc                  <none>
pn  proftpd-mod-pgsql                 <none>
pn  proftpd-mod-snmp                  <none>
pn  proftpd-mod-sqlite                <none>
ii  proftpd-mod-wrap                  1.3.7a+dfsg-8

-- no debconf information