Bug#873637: mate-panel fails to open /usr/share/mate-panel/ui/panel-properties-dialog-gtk3.ui

[Luffah]

Package: mate-panel
Version: 1.18.4-2
Severity: normal

Dear Maintainer,

After upgrading from stretch to testing the package
mate-desktop-environment,
it becomes impossible to open panel properties window
in a conventionnal way (right click > properties)
it says it fails to open
/usr/share/mate-panel/ui/panel-properties-dialog-gtk3.ui

I workarounded the problem in my system by doing a link...
```
sudo ln -s /usr/share/mate-panel/ui/panel-properties-dialog.ui
/usr/share/mate-panel/ui/panel-properties-dialog-gtk3.ui
```

Have a good day.


-- System Information:
Debian Release: 9.1
  APT prefers stable
  APT policy: (990, 'stable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-3-amd64 (SMP w/4 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 /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages mate-panel depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.26.0-2+b1
ii  libatk1.0-0                                  2.22.0-1
ii  libc6                                        2.24-11+deb9u1
ii  libcairo-gobject2                            1.14.8-1
ii  libcairo2                                    1.14.8-1
ii  libdbus-1-3                                  1.10.18-1
ii  libdbus-glib-1-2                             0.108-2
ii  libdconf1                                    0.26.0-2+b1
ii  libgdk-pixbuf2.0-0                           2.36.5-2
ii  libglib2.0-0                                 2.50.3-2
ii  libgtk-3-0                                   3.22.11-1
ii  libice6                                      2:1.0.9-2
ii  libmate-desktop-2-17                         1.18.0-1
ii  libmate-menu2                                1.16.0-2
ii  libmate-panel-applet-4-1                     1.18.4-2
ii  libmateweather1                              1.16.1-2
ii  libpango-1.0-0                               1.40.5-1
ii  libpangocairo-1.0-0                          1.40.5-1
ii  librsvg2-2                                   2.40.16-1+b1
ii  libsm6                                       2:1.2.2-1+b3
ii  libstartup-notification0                     0.12-4+b2
ii  libwnck-3-0                                  3.20.1-3
ii  libx11-6                                     2:1.6.4-3
ii  libxau6                                      1:1.0.8-1
ii  libxrandr2                                   2:1.5.1-1
ii  mate-desktop                                 1.18.0-1
ii  mate-menus                                   1.18.0-2
ii  mate-panel-common                            1.18.4-2
ii  mate-polkit                                  1.18.1-1
ii  menu-xdg                                     0.5

mate-panel recommends no packages.

mate-panel suggests no packages.

-- no debconf information