Bug#993616: gnome-software: cannot resolve http://ftp.us/debian.org

[tomas]

Package: gnome-software
Version: 3.30.6-5
Severity: grave
Justification: renders package unusable

Dear Maintainer,

I put 'calculator' in the app search box in gnomne shell. It returned a list 
of installable programs. I clicked on one of them, and gnome software was launched.
It showed a grey error box that said it couldn't download updates, because 
http://ftp.us.debian.org could not be resolved. Yet, 'apt-get update' has no problem.

So, with the standard Debian mirror, the app is not usable at all. 

I expected the program to install the program I wanted.

-- System Information:
Debian Release: 10.10
  APT prefers oldstable
  APT policy: (500, 'oldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-16-amd64 (SMP w/8 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
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 /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-software depends on:
ii  appstream                                    0.12.5-1
ii  apt-config-icons                             0.12.5-1
ii  dconf-gsettings-backend [gsettings-backend]  0.30.1-2
ii  gnome-software-common                        3.30.6-5
ii  gsettings-desktop-schemas                    3.28.1-1
ii  libappstream-glib8                           0.7.14-1+deb10u1
ii  libatk1.0-0                                  2.30.0-2
ii  libc6                                        2.28-10
ii  libcairo2                                    1.16.0-4+deb10u1
ii  libfwupd2                                    1.2.14-1~deb10u1
ii  libgdk-pixbuf2.0-0                           2.38.1+dfsg-1
ii  libglib2.0-0                                 2.58.3-2+deb10u3
ii  libgnome-desktop-3-17                        3.30.2.1-2
ii  libgspell-1-1                                1.6.1-2
ii  libgtk-3-0                                   3.24.5-1
ii  libgtk3-perl                                 0.034-2
ii  libgudev-1.0-0                               232-2
ii  libjson-glib-1.0-0                           1.4.4-2
ii  libpackagekit-glib2-18                       1.1.12-5
ii  libpolkit-gobject-1-0                        0.105-25
ii  libsecret-1-0                                0.18.7-1
ii  libsoup2.4-1                                 2.64.2-2
ii  packagekit                                   1.1.12-5
ii  software-properties-gtk                      0.96.20.2-2

Versions of packages gnome-software recommends:
ii  fwupd  1.2.14-1~deb10u1

Versions of packages gnome-software suggests:
pn  apt-config-icons-hidpi         <none>
pn  gnome-software-plugin-flatpak  <none>
pn  gnome-software-plugin-snap     <none>

-- no debconf information