Bug#912335: gnome-terminal: minor redraw issue when moving a window over the terminal

[Vincent Lefevre]

Package: gnome-terminal
Version: 3.30.1-1
Severity: minor

I can observe a minor redraw issue when moving a window over the
terminal (with opaque move).

See attached screenshot out1.png: vertical lines just on the right
of the X cross are visible.

The correct rendering is given by screenshot out2.png, obtained
after a full redraw.

Note: I'm using the FVWM window manager, no desktop environment,
and the NVIDIA driver (provided by the official Debian packages).

-- System Information:
Debian Release: buster/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.18.0-2-amd64 (SMP w/12 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=POSIX (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-terminal depends on:
ii  dbus-user-session [default-dbus-session-bus]  1.12.10-1
ii  dbus-x11 [dbus-session-bus]                   1.12.10-1
ii  dconf-gsettings-backend [gsettings-backend]   0.30.0-1
ii  gnome-terminal-data                           3.30.1-1
ii  gsettings-desktop-schemas                     3.28.1-1
ii  libatk1.0-0                                   2.30.0-1
ii  libc6                                         2.27-8
ii  libdconf1                                     0.30.0-1
ii  libglib2.0-0                                  2.58.1-2
ii  libgtk-3-0                                    3.24.1-2
ii  libpango-1.0-0                                1.42.1-1
ii  libuuid1                                      2.32.1-0.1
ii  libvte-2.91-0                                 0.54.1-1
ii  libx11-6                                      2:1.6.7-1

Versions of packages gnome-terminal recommends:
ii  gvfs                               1.38.0-2
ii  nautilus-extension-gnome-terminal  3.30.1-1
ii  yelp                               3.30.0-1

gnome-terminal suggests no packages.

-- no debconf information
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