bug: Default `timeout_ms` does not work with `formatexpr()`

[arkq]

Neovim version (nvim -v)

NVIM v0.10.4

Operating system/version

Debian GNU/Linux 13 (trixie)

Read debugging tips

• I have read through the debugging tips.

Add the debug logs

• I have set log_level = vim.log.levels.DEBUG and pasted the log contents below.

Log file

N/A

Describe the bug

The M.formatexpr = function(opts) defined in lua/conform/init.lua uses custom default value for timeout_ms. So, when running M.format(opts) the default timeout from default_format_opts is not used.

The workaround that I have:

vim.o.formatexpr = "v:lua.myformatexpr()"
_G.myformatexpr = function()
  require("conform").formatexpr({ timeout_ms = 2000 })
end

What is the severity of this bug?

tolerable (can work around it)

Steps To Reproduce

vim.o.formatexpr = "v:lua.require('conform').formatexpr()"

require("conform").setup({
  default_format_opts = { timeout_ms = 2000 },
})

gq still timeouts after 500 ms.

Expected Behavior

If some values are set in the default_format_opts, they should be used as defaults defaults in the M.formatexpr.

Minimal example file

No response

Minimal init.lua

Additional context

No response