[konsole] [Bug 394276] New: Alt+Backspace sends wrong sequence

[Moritz Bunkus]

https://bugs.kde.org/show_bug.cgi?id=394276

            Bug ID: 394276
           Summary: Alt+Backspace sends wrong sequence
           Product: konsole
           Version: 18.04.0
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: keyboard
          Assignee: konsole-devel at kde.org
          Reporter: moritz at bunkus.org
  Target Milestone: ---

This is a regression from 17.12.3.

In 17.12.3, pressing Alt+Backspace sends M-DEL to Emacs. In 18.04.0, it sends
C-M-h according to Emacs, something completely different.

I can return to the desired behavior simply by downgrading the konsole package
to 17.12.3. No other packages are changed.

How to reproduce:

1. Start konsole 18.04.0.
2. Start Emacs with default configuration: emacs -Q -nw
3. Press C-h k (for `describe-key`), then Alt+Backspace. Emacs shows "C-M-h
runs the command mark-defun".

Contrast that to konsole 17.12.3, where 3. shows "M-DEL runs the command
backward-kill-word".

Other terminal emulators such as the VTE-based "terminator" or "kitty" all show
the desired behavior: Emacs shows M-DEL.

Note that I've renamed ~/.config/konsolerc and ~/.local/share/konsole before
running the tests. Therefore konsole's default configuration should apply.

I'm using Arch Linux' packages.

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