Bug#954195: gnome-music fails to start

[Roman Riabenko]

Package: gnome-music
Version: 3.36.3-1
Followup-For: Bug #954195

Dear Maintainer,

gnome-music still fails to start on version 3.36.3-1 in sid with the following traceback:

$ gnome-music
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/gnomemusic/scrobbler.py", line 81, in _new_client_callback
    manager.call_is_supported_provider(
AttributeError: 'NoneType' object has no attribute 'call_is_supported_provider'

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

Kernel: Linux 5.7.0-2-amd64 (SMP w/6 CPU threads)
Locale: LANG=uk_UA.UTF-8, LC_CTYPE=uk_UA.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-music depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.36.0-1
ii  gir1.2-dazzle-1.0                            3.36.0-1
ii  gir1.2-glib-2.0                              1.64.1-1
ii  gir1.2-goa-1.0                               3.36.0-1
ii  gir1.2-grilo-0.3                             0.3.12-1
ii  gir1.2-gst-plugins-base-1.0                  1.16.2-4
ii  gir1.2-gstreamer-1.0                         1.16.2-2
ii  gir1.2-gtk-3.0                               3.24.22-1
ii  gir1.2-mediaart-2.0                          1.9.4-2
ii  gir1.2-soup-2.4                              2.70.0-1
ii  gir1.2-totemplparser-1.0                     3.26.5-1
ii  gir1.2-tracker-2.0                           2.3.4-1+b1
ii  gnome-settings-daemon                        3.36.1-1
ii  grilo-plugins-0.3                            0.3.11-1
ii  libc6                                        2.31-3
ii  libcairo-gobject2                            1.16.0-4
ii  libcairo2                                    1.16.0-4
ii  libgdk-pixbuf2.0-0                           2.40.0+dfsg-5
ii  libglib2.0-0                                 2.64.4-1
ii  libgtk-3-0                                   3.24.22-1
ii  libpango-1.0-0                               1.46.0-2
ii  libpangocairo-1.0-0                          1.46.0-2
ii  python3                                      3.8.2-3
ii  python3-gi                                   3.36.0-4
ii  python3-gi-cairo                             3.36.0-4
ii  python3-requests                             2.23.0+dfsg-2
ii  tracker                                      2.3.4-1+b1

gnome-music recommends no packages.

gnome-music suggests no packages.

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