Bug#1057159: bookworm-pu: package gnome-characters/43.1-1+deb12u1

[Jeremy Bícha]

Package: release.debian.org
Control: affects -1 + src:gnome-characters
X-Debbugs-Cc: gnome-characters at packages.debian.org
User: release.debian.org at packages.debian.org
Usertags: pu
Tags: bookworm

[ Reason ]
The default color emoji font in Debian GNOME 12 is
fonts-noto-color-emoji which is being updated to 2.042 to include
support for Unicode 15.1.

The GNOME Characters app should be updated to display the new emoji
from Unicode 15.1

https://bugs.debian.org/1057158

[ Impact ]
If this update doesn't happen for Debian 12, the new 15.1 emoji
will not display in the Characters app. Users would instead have to
browse and copy these new emoji from emojipedia.org or from some other
source.

[ Tests ]
I have built the new package on Debian 12 and installed it on Debian 12.
I also installed my self-built copy of fonts-noto-color-emoji 2.042-0+deb12u1
Then I successfully completed the 2 test cases from
https://launchpad.net/bugs/2045056

[ Risks ]
This has no impact beyond the gnome-characters app. The
gnome-characters app is installed by default in Debian GNOME and
Debian Cinnamon.

A similar stable release update for Ubuntu 23.10 is in progress at
https://launchpad.net/bugs/2045056

[ Checklist ]
  [X] *all* changes are documented in the d/changelog
  [X] I reviewed all changes and I approve them
  [X] attach debdiff against the package in (old)stable
  [X] the issue is verified as fixed in unstable

[ Changes ]
  * Cherry-pick patch for Unicode 15.0.1 updates
  * Cherry-pick proposed patch for Unicode 15.1 updates (Closes: #1057158)
  * debian/gbp.conf: Branch for bookworm

[ Other info ]
This change is accompanied by a corresponding update for
fonts-noto-color-emoji: https://bugs.debian.org/1057156 . Ideally,
both of these updates would be accepted.

If the gnome-characters update is accepted but fonts-noto-color-emoji
is not, the new composite emoji will display badly in the grid layout
(phoenix would appear separately as bird+fire taking up too much
width.

It is less bad if fonts-noto-color-emoji is accepted but
gnome-characters is not. Users would need to manually copy the emoji
from a place like emojipedia instead of using the app. That is less
convenient though. Viewing emoji would still work.

This changeset consists of two patches: one patch is cherry-pick from
gnome-characters 45.0. The other is in a merge request that was
proposed months before fonts-noto-color-emoji's Unicode 15.1 update
was released and is expected to be merged soon.

https://gitlab.gnome.org/GNOME/gnome-characters/-/merge_requests/110

Thank you,
Jeremy Bícha
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