bug: New lazy loading broken for vim-ledger

[gregorias]

Did you check docs and existing issues?

• I have read all the lazy.nvim docs
• I have searched the existing issues of lazy.nvim
• I have searched the existing issues of plugins related to this issue

Neovim version (nvim -v)

v0.9.2

Operating system/version

macOS 14.0

Describe the bug

vim-ledger started throwing startup errors due to undefined variables upon opening a ledger file.

The error is:

Error detected while processing BufReadPost Autocommands for "*.ledger"..FileType Autocommands for "*"..Syntax Autocommands
 for "*"..function <SNR>24_SynSet[25]..script /root/.repro/plugins/vim-ledger/syntax/ledger.vim:
line   15:
E121: Undefined variable: g:ledger_is_hledger
line   22:
E121: Undefined variable: b:is_hledger
line   70:
E121: Undefined variable: s:line_comment_chars
line   74:
E121: Undefined variable: b:is_hledger
line   88:
E121: Undefined variable: b:is_hledger
line  147:
E121: Undefined variable: b:is_hledger

The error has started appearing since a recent commit, ef2a5d0. @JulesNP also reports there an initialization error, which suggest that something happened to lazy-loading logic.

Steps To Reproduce

1. touch ledger.ledger
2. nvim ledger.ledger

Expected Behavior

No error is thrown at start up.

Repro

-- DO NOT change the paths and don't remove the colorscheme
local root = vim.fn.fnamemodify("./.repro", ":p")

-- set stdpaths to use .repro
for _, name in ipairs({ "config", "data", "state", "cache" }) do
  vim.env[("XDG_%s_HOME"):format(name:upper())] = root .. "/" .. name
end

-- bootstrap lazy
local lazypath = root .. "/plugins/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({ "git", "clone", "--filter=blob:none", "https://github.com/folke/lazy.nvim.git", lazypath, })
end
vim.opt.runtimepath:prepend(lazypath)

-- install plugins
local plugins = {
  "folke/tokyonight.nvim",
  { "ledger/vim-ledger", ft = "ledger" },
}
require("lazy").setup(plugins, {
  root = root .. "/plugins",
})

vim.cmd.colorscheme("tokyonight")

[folke]

Should be fixed now!

[gregorias]

Looks good. Thank you!