lsb_release -a
No LSB modules are available.
Distributor ID:	Debian
Description:	Debian GNU/Linux 10 (buster)
Release:	10
Codename:	buster

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apt show terminator -a
Package: terminator
Version: 2.1.0-1~bpo10+1
Priority: optional
Section: misc
Maintainer: Debian Python Team <team+python@tracker.debian.org>
Installed-Size: 2,323 kB
Provides: x-terminal-emulator
Depends: python3-cairo, python3-configobj, python3-dbus, python3-gi, python3-gi-cairo, python3-psutil, gir1.2-glib-2.0, gir1.2-gtk-3.0, gir1.2-pango-1.0, gir1.2-vte-2.91, python3:any
Recommends: default-dbus-session-bus | dbus-session-bus, gir1.2-keybinder-3.0, gir1.2-notify-0.7, xdg-utils
Homepage: https://github.com/gnome-terminator/terminator
Download-Size: 359 kB
APT-Manual-Installed: yes
APT-Sources: http://deb.debian.org/debian buster-backports/main amd64 Packages
Description: multiple GNOME terminals in one window
 Terminator is a little project to produce an efficient way of
 filling a large area of screen space with terminals.
 .
 The user can have multiple terminals in one window and use
 key bindings to switch between them. See the manpage for
 details.

Package: terminator
Version: 1.91-4
Priority: optional
Section: misc
Maintainer: Python Applications Packaging Team <python-apps-team@lists.alioth.debian.org>
Installed-Size: 2,149 kB
Provides: x-terminal-emulator
Depends: python3-cairo, python3-configobj, python3-dbus, python3-gi, python3-gi-cairo, python3-psutil, gir1.2-glib-2.0, gir1.2-gtk-3.0, gir1.2-pango-1.0, gir1.2-vte-2.91, dbus-x11, python3:any
Recommends: gir1.2-keybinder-3.0, gir1.2-notify-0.7, xdg-utils
Homepage: https://gnometerminator.blogspot.com/p/introduction.html
Tag: implemented-in::python, interface::graphical, interface::shell,
 interface::x11, role::program, suite::gnome, uitoolkit::gtk,
 x11::application
Download-Size: 335 kB
APT-Sources: http://deb.debian.org/debian buster/main amd64 Packages
Description: multiple GNOME terminals in one window
 Terminator is a little project to produce an efficient way of
 filling a large area of screen space with terminals.
 .
 The user can have multiple terminals in one window and use
 key bindings to switch between them. See the manpage for
 details.


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https://github.com/gnome-terminator/terminator/issues/432
https://github.com/ibus/ibus/issues/1802
https://packages.debian.org/buster-backports/terminator
https://bugs.launchpad.net/terminator/+bug/1318542
https://www.claudiokuenzler.com/blog/862/terminator-terminal-inserting-each-character-twice-double-broadcast-multiple-windows
https://askubuntu.com/questions/1189243/why-is-terminator-sending-double-characters-to-terminals-that-arent-selected-in
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=692428