Bug#939407: gtk-3-examples: Paste from closed GTK3 applications is broken under Wayland (clipboard vanishes on exit)

[Conrad J.C. Hughes (for Debian package stuff)]

Package: gtk-3-examples
Version: 3.24.5-1
Severity: normal

Dear Maintainer,

This has been reported upstream, but since no fix has been forthcoming in
*three years*, there's no due date, and the issue "needs design", it would be
interesting to know whether Debian has a workaround: this seems like a major
usability fail.

  https://gitlab.gnome.org/GNOME/gtk/issues/587

If I copy some data from a GTK3 application and then close the app, the
clipboard is cleared.  This is unexpected: usual behaviour is for copied data
to survive application closure.  To reproduce:

- Open gtk3-demo, expand the "Entry" section and double-click on "Entry
Buffer".
- This will open a text field; type in some text and and press control-C to
copy it.
- Select a text field in another window and press control-V: the copied text is
pasted/inserted, as expected.
- Close gtk3-demo.
- Select a text field in another window and press control-V: nothing appears.
The clipboard is empty (or perhaps never existed).

Expected behaviour would be that the second attempt to paste would work exactly
the same as the first.



-- System Information:
Debian Release: 10.0
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.19.0-5-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gtk-3-examples depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.30.1-2
ii  libatk-bridge2.0-0                           2.30.0-5
ii  libatk1.0-0                                  2.30.0-2
ii  libc6                                        2.28-10
ii  libcairo-gobject2                            1.16.0-4
ii  libcairo2                                    1.16.0-4
ii  libepoxy0                                    1.5.3-0.1
ii  libfontconfig1                               2.13.1-2
ii  libfreetype6                                 2.9.1-3
ii  libgdk-pixbuf2.0-0                           2.38.1+dfsg-1
ii  libglib2.0-0                                 2.58.3-2
ii  libgtk-3-0                                   3.24.5-1
ii  libharfbuzz0b                                2.3.1-1
ii  libpango-1.0-0                               1.42.4-7~deb10u1
ii  libpangocairo-1.0-0                          1.42.4-7~deb10u1
ii  libpangoft2-1.0-0                            1.42.4-7~deb10u1
ii  libwayland-client0                           1.16.0-1
ii  libwayland-cursor0                           1.16.0-1
ii  libwayland-egl1                              1.16.0-1
ii  libx11-6                                     2:1.6.7-1
ii  libxcomposite1                               1:0.4.4-2
ii  libxcursor1                                  1:1.1.15-2
ii  libxdamage1                                  1:1.1.4-3+b3
ii  libxext6                                     2:1.3.3-1+b2
ii  libxfixes3                                   1:5.0.3-1
ii  libxi6                                       2:1.7.9-1
ii  libxinerama1                                 2:1.1.4-2
ii  libxkbcommon0                                0.8.2-1
ii  libxrandr2                                   2:1.5.1-1

gtk-3-examples recommends no packages.

gtk-3-examples suggests no packages.

-- no debconf information