Duplicated newline when doing copy/paste

Describe the bug When doing copy/paste, for example, a code snippet from this repo or gedit, there always exist a duplicated newline for each line being pasted.

To Reproduce Steps to reproduce the behavior:

copy any text from browser or GUI editor (e.g. gedit).
paste the text to, for example, Vim.
there would be duplicated newlines

Screenshots The result:

The expected result:

Environment details

kitty 0.26.3 created by Kovid Goyal
Linux Zulu 5.19.13-arch1-1 #1 SMP PREEMPT_DYNAMIC Tue, 04 Oct 2022 14:36:58 +0000 x86_64
Arch Linux 5.19.13-arch1-1 (/dev/tty)

Running under: X11
Frozen: False
Paths:
  kitty: /usr/bin/kitty
  base dir: /usr/lib/kitty
  extensions dir: /usr/lib/kitty/kitty
  system shell: /usr/bin/zsh
Loaded config files:
  /home/fox/.config/kitty/kitty.conf

Config options different from defaults:
click_interval       0.3
enable_audio_bell    False
font_family          Bitstream Vera Sans Mono Nerd Font Complete Mono
font_size            14.0
tab_bar_edge         1
tab_bar_style        powerline
Colors:
    color1               #ff0000   
    color10              #56db3a   
    color11              #ffff00   
    color12              #0084d4   
    color13              #b729d9   
    color14              #e0ffff   
    color2               #56db3a   
    color3               #ffe700   
    color4               #00d4f1   
    color5               #ff00ff   
    color6               #00ffff   
    color7               #c0c0c0   
    color8               #1b1d21   
    color9               #dc322f   
    cursor               #dc628f   
    foreground           #e0e0e0   
    selection_background #00ffff   

Important environment variables seen by the kitty process:
    PATH                                /usr/local/sbin:/usr/local/bin:/usr/bin:/var/lib/flatpak/exports/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl
    LANG                                en_US.UTF-8
    SHELL                               /usr/bin/zsh
    DISPLAY                             :0
    USER                                fox
    XDG_SESSION_PATH                    /org/freedesktop/DisplayManager/Session1
    XDG_SEAT                            seat0
    XDG_SESSION_DESKTOP                 i3
    XDG_SESSION_TYPE                    x11
    XDG_CURRENT_DESKTOP                 i3
    XDG_SEAT_PATH                       /org/freedesktop/DisplayManager/Seat0
    XDG_SESSION_CLASS                   user
    XDG_VTNR                            1
    XDG_SESSION_ID                      2
    XDG_RUNTIME_DIR                     /run/user/1000
    XDG_DATA_DIRS                       /home/fox/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share

Additional context Starting kitty with kitty --config NONE yields the same result. Plus, this probably has nothing to do with my Vim setting since another terminal emulator, Alacritty, has no duplicated newline mentioned above.

Thanks!

kovidgoyal / kitty

Duplicated newline when doing copy/paste #5832