Bug#890375: gnome-tweaks: update changes touchpad right click behavior silently

[Andreas Hehn]

Package: gnome-tweaks
Version: 3.27.90-1
Severity: important

Dear Maintainer,

sometime last week I suddenly lost the ability to right and middle click on my
(button-less) synaptics touchpad.
Today I investigated the problem and found out gnome-tweaks was one of the
relevant packages updated last week (3.27.4-1 -> 3.27.90-1).
In the new version I found the "Mouse Click Emulation" setting, which was set
to "Fingers". I realized the right click ability wasn't lost, but the the way
you right click changed from the bottom right corner click on the touchpad to a
two-finger click (I like the idea!).
Setting it to "Area" brought back the old behavior.
This setting is not present on the previous version of gnome-tweaks (3.27.4-1)
(at least on my installation) and I highly suspect the update to 3.27.90-1
changed the setting silently.
This is a really unexpected change which may leave a user puzzled for quite a
while.

I would expect the introduction of such a setting not to change the previous
behavior automatically, but to default on the old behavior.
At least I would expect this change to be announced during the update.

Please let me know if I can be of further assistance to resolve this problem!
Best,
Andreas

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

Kernel: Linux 4.14.0-3-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-tweaks depends on:
ii  gir1.2-glib-2.0            1.54.1-4
ii  gir1.2-gnomedesktop-3.0    3.26.2-6
ii  gir1.2-gtk-3.0             3.22.26-2
ii  gir1.2-notify-0.7          0.7.7-3
ii  gir1.2-pango-1.0           1.40.14-1
ii  gir1.2-soup-2.4            2.60.3-1
ii  gnome-settings-daemon      3.26.2-1
ii  gnome-shell-common         3.26.2-4
ii  gsettings-desktop-schemas  3.27.90-1
ii  mutter-common              3.26.2-1
ii  nautilus-data              3.26.2-2
ii  python3                    3.6.4-1
ii  python3-gi                 3.26.1-2

gnome-tweaks recommends no packages.

gnome-tweaks suggests no packages.

-- no debconf information