nvim-autopairs is breaking `i_CTRL-G_j` commands

[polirritmico]

Description

The plugin is breaking the <C-g>j/<C-g>k behaviour in insert mode.

From :h insert-index:

i_CTRL-G_j CTRL-G CTRL-J line down, to column where inserting started
i_CTRL-G_j CTRL-G j line down, to column where inserting started

But if the cursor begin the edit inside a pair, then <C-g>j is not moving to the column where inserting started.

Mapping bug

No response

Steps to reproduce

1. Open a new file with nvim-autopairs enabled.
2. Write this content:

1. ""
2. ""

3. In normal mode move the cursor inside the first " pair.
4. i and type test()
5. Now, still in insert mode, press <C-g>j
6. The cursor move outside the second " pair.

---

Expected behaviour:

1. Open a clean nvim instance: $ nvim --clean foo
   Repeat steps 2 through 5.
2. The cursor move inside the second " pair.

Minimal config

vim.cmd [[set runtimepath=$VIMRUNTIME]]
vim.cmd [[set packpath=/tmp/nvim/site]]
local package_root = '/tmp/nvim/site/pack'
local install_path = package_root .. '/packer/start/packer.nvim'
local function load_plugins()
  require('packer').startup {
    {
      'wbthomason/packer.nvim',
      {
        'windwp/nvim-autopairs',
      },
    },
    config = {
      package_root = package_root,
      compile_path = install_path .. '/plugin/packer_compiled.lua',
      display = { non_interactive = true },
    },
  }
end
_G.load_config = function()
  require('nvim-autopairs').setup()
end
if vim.fn.isdirectory(install_path) == 0 then
  print("Installing nvim-autopairs and dependencies.")
  vim.fn.system { 'git', 'clone', '--depth=1', 'https://github.com/wbthomason/packer.nvim', install_path }
end
load_plugins()
require('packer').sync()
vim.cmd [[autocmd User PackerComplete ++once echo "Ready!" | lua load_config()]]

[pianoboy71]

Can I ask why the expected behaviour is that the cursor would move into the second " pair? When my cursor is at the position 1. "test(|)" which Neovim deems to be column 10, and you jump down with <C-g>j, there is no 10th column on line 2 for it to jump to, so it takes you to the closest column on that line, column 6, which is after the quotes. I think this should be the expected behaviour IMO, but feel free to correct me if I'm wrong, and I will try to help out as much as I can.

[polirritmico]

Can I ask why the expected behaviour is that the cursor would move into the second " pair?

Because that is where insert mode was started. The whole purpose of <C-g>j is to preserve the column position where the text insertion began. From the documentation: i_CTRL-G_j line down, to column where inserting started.

I think you misread steps 4 and 5 in the reproduction instructions. The starting point is not 1. "test(|)" but 1. "|". Therefore, when using <C-g>j, the starting column (the 5th) should be preserved no matter what you write on each line.

What you are describing is <up>/<down> (:h insert-index).

[pianoboy71]

I still can't recreate the issue with the new setup you have described, I will link a screen recording of my attempted reproduction below:

Screen.Recording.2025-08-19.205935.mp4

If there is still any confusion, please let me know and I will do my best to help.

[polirritmico]

I don't described any new setup, I've just try to describe in further details the reproduction steps but it seems I fail to do so.

In your video you are missing step 4.