[Bug]: Error processing InsertLeave Autocommands with show_settings

[bashtoni]

Your minimal.lua config

---@diagnostic disable: missing-fields

--[[
NOTE: Set the config path to enable the copilot adapter to work.
It will search the following paths for a token:
  - "$CODECOMPANION_TOKEN_PATH/github-copilot/hosts.json"
  - "$CODECOMPANION_TOKEN_PATH/github-copilot/apps.json"
--]]
vim.env["CODECOMPANION_TOKEN_PATH"] = vim.fn.expand("~/.config")

vim.env.LAZY_STDPATH = ".repro"
load(vim.fn.system("curl -s https://raw.githubusercontent.com/folke/lazy.nvim/main/bootstrap.lua"))()

-- Your CodeCompanion setup
local plugins = {
  {
    "olimorris/codecompanion.nvim",
    dependencies = {
      { "nvim-treesitter/nvim-treesitter", build = ":TSUpdate" },
      { "nvim-lua/plenary.nvim" },
      -- Test with blink.cmp
      {
        "saghen/blink.cmp",
        lazy = false,
        version = "*",
        opts = {
          keymap = {
            preset = "enter",
            ["<S-Tab>"] = { "select_prev", "fallback" },
            ["<Tab>"] = { "select_next", "fallback" },
          },
          sources = {
            default = { "lsp", "path", "buffer", "codecompanion" },
            cmdline = {}, -- Disable sources for command-line mode
          },
        },
      },
      -- Test with nvim-cmp
      -- { "hrsh7th/nvim-cmp" },
    },
    opts = {
      --Refer to: https://github.com/olimorris/codecompanion.nvim/blob/main/lua/codecompanion/config.lua
      strategies = {
        --NOTE: Change the adapter as required
        chat = { adapter = "copilot" },
        inline = { adapter = "copilot" },
      },
      opts = {
        log_level = "DEBUG",
      },
      display = {
        chat = {
          show_settings = true,
        },
      },
    },
  },
}

require("lazy.minit").repro({ spec = plugins })

-- Setup Tree-sitter
local ts_status, treesitter = pcall(require, "nvim-treesitter.configs")
if ts_status then
  treesitter.setup({
    ensure_installed = { "lua", "markdown", "markdown_inline", "yaml" },
    highlight = { enable = true },
  })
end

-- Setup nvim-cmp
-- local cmp_status, cmp = pcall(require, "cmp")
-- if cmp_status then
--   cmp.setup({
--     mapping = cmp.mapping.preset.insert({
--       ["<C-b>"] = cmp.mapping.scroll_docs(-4),
--       ["<C-f>"] = cmp.mapping.scroll_docs(4),
--       ["<C-Space>"] = cmp.mapping.complete(),
--       ["<C-e>"] = cmp.mapping.abort(),
--       ["<CR>"] = cmp.mapping.confirm({ select = true }),
--       -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
--     }),
--   })
-- end

Error messages

Error detected while processing InsertLeave Autocommands for "<buffer=4>":
Error executing lua callback: /usr/share/nvim/runtime/lua/vim/treesitter/languagetree.lua:190: bad argument #3 to 'f' (invalid buffer h
andle: 3)
stack traceback:
        [C]: in function 'f'
        /usr/share/nvim/runtime/lua/vim/treesitter/languagetree.lua:190: in function 'tcall'
        /usr/share/nvim/runtime/lua/vim/treesitter/languagetree.lua:361: in function '_parse_regions'
        /usr/share/nvim/runtime/lua/vim/treesitter/languagetree.lua:439: in function 'parse'
        ...ompanion.nvim/lua/codecompanion/strategies/chat/init.lua:107: in function 'ts_parse_settings'
        ...ompanion.nvim/lua/codecompanion/strategies/chat/init.lua:376: in function <...ompanion.nvim/lua/codecompanion/strategies/cha
t/init.lua:375>

Log output

Error happens before log is created.

Describe the bug

Error when leaving insert mode on the second CodeCompanion buffer when show_settings is true.
Tested on Fedora 41.

Reproduce the bug

1. :CodeCompanionChat
2. Enter insert mode
3. Escape to normal mode
4. Close window with ctrl+c
5. :CodeCompanionChat
6. Enter insert mode
7. Escape to normal mode

Adapter and model

copilot

Final checks

• I have made sure this issue exists in the latest version of the plugin
• I have tested with the minimal.lua file from above and have shared this
• I have shared the contents of the log file

[github-actions]

Important

If your issue does NOT contain a valid minimal.lua then this issue may be closed without a response.
Thanks for respecting my time and efforts.

Thanks @bashtoni. I'll get to this as soon as I can.

In the meantime, please ensure:

• This is a plugin related issue and not an issue with your configuration
• You've searched for similar issues (try the discussions too)
• You've checked out the documentation
• The issue title is accurate
• There is a valid minimal.lua file included so I can try and recreate the issue

[olimorris]

Thanks for catching this. Now fixed.