Triple backticks adds extra backtick with no `enable_moveright`

[nihaals]

Description

With enable_moveright = false, typing ``` gives ```|```` instead of ```|```. Enabling enable_moveright fixes the issue.

Mapping bug

No response

Steps to reproduce

2026-05-31.13-09-04.UTC.mp4

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',
      },
      -- ADD PLUGINS THAT ARE _NECESSARY_ FOR REPRODUCING THE ISSUE
    },
    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({ enable_moveright = false })
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()]]

Workaround

local npairs = require("nvim-autopairs")
local Rule = require("nvim-autopairs.rule")
local cond = require("nvim-autopairs.conds")

npairs.remove_rule("`")
npairs.add_rule(Rule("`", "`"):with_move(cond.move_right()))

[fooness]

The same is true for triple backticks on a new line when writing markdown multiline code blocks, for example …

```json

````|