Application slow closing directories with .git contained

Description

After upgrading to 0.10.*, closing nvim causes a long pause, up to 10 seconds.

This seems to be similar to #2438, but it is replicable with zero changes made to the cleanroom config, and is not related to node_modules or any similar large directory.

This is replicable using the absolute barebones cleanroom config without any changes made.

There appears to be no relevant info in nvim-tree.log as all logged lines occurs before the attempted close.

---

This behaviour has two interesting cases

1. If any subdirectories of the open path contains a .git directory, the bug occurs, it does not only apply to the root open path
2. The issue also persists if a .git directory simply exists without being an actual git repo

Neovim version

NVIM v0.10.2
Build type: Release
LuaJIT 2.1.1727870382
git version 2.47.0

Operating system and version

MacOS 14.1

Windows variant

No response

nvim-tree version

c763948

Clean room replication

vim.g.loaded_netrw = 1
vim.g.loaded_netrwPlugin = 1

vim.cmd([[set runtimepath=$VIMRUNTIME]])
vim.cmd([[set packpath=/tmp/nvt-min/site]])
local package_root = "/tmp/nvt-min/site/pack"
local install_path = package_root .. "/packer/start/packer.nvim"
local function load_plugins()
  require("packer").startup({
    {
      "wbthomason/packer.nvim",
      "nvim-tree/nvim-tree.lua",
      "nvim-tree/nvim-web-devicons",
      -- 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
if vim.fn.isdirectory(install_path) == 0 then
  print("Installing nvim-tree 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 setup()]])
vim.opt.termguicolors = true
vim.opt.cursorline = true

-- MODIFY NVIM-TREE SETTINGS THAT ARE _NECESSARY_ FOR REPRODUCING THE ISSUE
_G.setup = function()
  require("nvim-tree").setup({
	log = {
		enable = true,
		truncate = true,
		types = {
			all = false,
			config = false,
			copy_paste = false,
			dev = false,
			diagnostics = true,
			git = true,
			profile = true,
			watcher = true,
		},
	},
  })
end

-- UNCOMMENT this block for diagnostics issues, substituting pattern and cmd as appropriate.
-- Requires diagnostics.enable = true in setup.
--[[
vim.api.nvim_create_autocmd("FileType", {
  pattern = "lua",
  callback = function()
    vim.lsp.start {
      name = "my-luals",
      cmd = { "lua-language-server" },
      root_dir = vim.loop.cwd(),
    }
  end,
})
]]

Steps to reproduce

1. Create a new directory to test in
2. Initialize a git repo in the directory, or create an empty .git directory within
3. Open directory with cleanroom configuration
4. Toggle the visibility of the tree
5. Close the project

Expected behavior

Standard close behavior.

Actual behavior

A hang/delay of up to 10 seconds before nvim closes.

Reproduce the delay with the minimal cleanroom configuration and the listed steps, using an empty .git directory and an initialized repository. Start by reviewing the nvim-tree setup and nvim-tree.log around closing, then compare behavior with and without nested .git directories. Done means closing the project returns to standard behavior without the multi-second pause.