[Pkg-owncloud-maintainers] Bug#926508: nextcloud-desktop: Cannot login: "You have been logged out of myself at example.org as user myself. Please login again"

[kaliko]

Package: nextcloud-desktop
Version: 2.5.1-2
Severity: grave

Dear Maintainer,

Recently (end of march), nextcloud-desktop on gnome stopped working.
It looks related to the previous libqt5keychain1/libsecret issue but is
probably not the same issue.

I did not notice it right away but I believe upgrading to libqt5webengine 5.11.3+dfsg-2+b1 might have triggered the issue.

When login in Gnome nextcloud-desktop pops up and prompts for the web
login page with the following message at the top of the window:
    "You have been logged out of myself at example.org as user myself.
	Please login again"

Providing credentials succeeds but then and it ends up in a loop, from
"authorising access" to "connect".

Trying to use a token instead of plain login/password lead to a broken
web page.

I did reproduce it in a fresh buster VM.

Cheers
k

-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE=fr_FR.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 nextcloud-desktop depends on:
ii  libc6                     2.28-8
ii  libgcc1                   1:8.3.0-4
ii  libnextcloudsync0         2.5.1-2
ii  libqt5concurrent5         5.11.3+dfsg1-1
ii  libqt5core5a              5.11.3+dfsg1-1
ii  libqt5dbus5               5.11.3+dfsg1-1
ii  libqt5gui5                5.11.3+dfsg1-1
ii  libqt5keychain1           0.9.1-2
ii  libqt5network5            5.11.3+dfsg1-1
ii  libqt5positioning5        5.11.3+dfsg-2
ii  libqt5printsupport5       5.11.3+dfsg1-1
ii  libqt5qml5                5.11.3-4
ii  libqt5quick5              5.11.3-4
ii  libqt5sql5-sqlite         5.11.3+dfsg1-1
ii  libqt5webchannel5         5.11.3-2
ii  libqt5webenginecore5      5.11.3+dfsg-2+b1
ii  libqt5webenginewidgets5   5.11.3+dfsg-2+b1
ii  libqt5webkit5             5.212.0~alpha2-21
ii  libqt5widgets5            5.11.3+dfsg1-1
ii  libqt5xml5                5.11.3+dfsg1-1
ii  libsqlite3-0              3.27.2-2
ii  libssl1.1                 1.1.1b-1
ii  libstdc++6                8.3.0-4
ii  nextcloud-desktop-common  2.5.1-2
ii  nextcloud-desktop-l10n    2.5.1-2
ii  zlib1g                    1:1.2.11.dfsg-1

Versions of packages nextcloud-desktop recommends:
ii  nextcloud-desktop-doc  2.5.1-2

nextcloud-desktop suggests no packages.

-- no debconf information