Bug#841028: Same behaviour but triggered when two network present

[Yasushi SHOJI <yasushi.shoji@gmail.com>]

My system now behaves as described above.
A only difference is that I have wired and wireless network.
When I enable both interfaces, cups takes 100 % CPU.

I think I can take some debug info if needed.

Thanks,

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

Kernel: Linux 4.19.0-4-amd64 (SMP w/4 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: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages cups-browsed depends on:
ii  cups-daemon       2.2.10-4
ii  libavahi-client3  0.7-4+b1
ii  libavahi-common3  0.7-4+b1
ii  libavahi-glib1    0.7-4+b1
ii  libc6             2.28-8
ii  libcups2          2.2.10-4
ii  libcupsfilters1   1.21.6-4
ii  libglib2.0-0      2.58.3-1
ii  libldap-2.4-2     2.4.47+dfsg-3
ii  lsb-base          10.2019031300

Versions of packages cups-browsed recommends:
ii  avahi-daemon  0.7-4+b1

cups-browsed suggests no packages.

-- no debconf information
-- 
                 yashi