[Pkg-utopia-maintainers] Bug#953087: firewalld: firewall-cmd --reload fails after installation

[no real name]

Package: firewalld
Version: 0.6.3-5
Severity: important

Dear Maintainer,

after installation the firewalld-package on some fresh installed
debian systems. I allways get:

# firewall-cmd --reload
Error: COMMAND_FAILED: '/usr/sbin/ip6tables-restore -w -n' failed: ip6tables-restore v1.8.2 (nf_tables): 
line 4: RULE_REPLACE failed (No such file or directory): rule in chain INPUT
line 4: RULE_REPLACE failed (No such file or directory): rule in chain OUTPUT

Because auf this, I can only deploy new rules by restarting the system.

Is there something I can do, to debug this bug?

Best regards!

-- System Information:
Debian Release: 10.3
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-8-amd64 (SMP w/1 CPU core)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages firewalld depends on:
ii  dbus                 1.12.16-1
ii  gir1.2-glib-2.0      1.58.3-2
ii  init-system-helpers  1.56+nmu1
ii  iptables             1.8.2-4
ii  policykit-1          0.105-25
ii  python3              3.7.3-1
ii  python3-dbus         1.2.8-3
ii  python3-gi           3.30.4-1
ii  python3-slip-dbus    0.6.5-2

Versions of packages firewalld recommends:
pn  ipset  <none>

firewalld suggests no packages.

-- Configuration Files:
/etc/firewalld/firewalld.conf [Errno 13] Keine Berechtigung: '/etc/firewalld/firewalld.conf'
/etc/firewalld/lockdown-whitelist.xml [Errno 13] Keine Berechtigung: '/etc/firewalld/lockdown-whitelist.xml'

-- no debconf information