Ctrl+KEY in vim is ignored when navigating quicklist

[milosgajdos]

I have these two nifty keyboard shortcuts in my vim config that allow me to move through/close quickfix list:

au FileType go map <C-n> :cnext<CR>
au FileType go map <C-m> :cprevious<CR>
au FileType go nnoremap <leader>a :cclose<CR>

While the Ctrl+m and leader+a do work as expected, I've just learnt that the Ctrl+n is somehow ignored: it does not jump to the next item in the quick list.

Screen.Recording.2025-01-08.at.10.21.30.mov

My original suspicion was this shortcut gets hijacked by something in ghostty, so I tried changing it to Ctrl+e

au FileType go map <C-s> :cnext<CR>

What I observed was that the first time I hit Ctrl+s worked as expected the following times it just didn't and I got back the behaviour described above: the keystroke is being ignored.

I did test this in other terminals and everything works fine, so I'm guess there may be some issue in ghostty or I'm missing something fundamental here

This is happening on:

$ ghostty --version
Ghostty 1.0.1

Version
  - version: 1.0.1
  - channel: stable
Build Config
  - Zig version: 0.13.0
  - build mode : builtin.OptimizeMode.ReleaseFast
  - app runtime: apprt.Runtime.none
  - font engine: font.main.Backend.coretext
  - renderer   : renderer.Metal
  - libxev     : main.Backend.kqueue