Buffer options not when opening a file

[saccarosium]

Problem

I've been banging my head against this for a few hours. Figured i'd ask

Here is a small reproduction: https://github.com/eanyanwu/neovim-bug
Its a single init.lua file that creates a buffer and set some buffer local options

Here are the contents of the file for posterity:

local gb = vim.api.nvim_create_buf(false, false)
vim.api.nvim_buf_set_option(gb, "buftype", "nofile")
vim.api.nvim_buf_set_option(gb, "filetype", "alist")
vim.api.nvim_buf_set_option(gb, "modeline", false)
print(gb)

Open neovim like this: nvim -u neovim-bug/init.lua . (note the period at the end)

Steps to reproduce

git clone https://github.com/eanyanwu/neovim-bug.git
nvim -u neovim-bug/init.lua .
:set filetype?
:set buftype?

Expected behavior

I would expect that the newly created buffer should have the options that it set.

If i go to it using buffer <id>, then type set filetype?, i expect that to be "alist". But it is empty. Same for set buftype?

The odd thing is that if I just do nvim -u neovim-bug/init.lua instead (without the period) ... i get the results i'd expect.

Am i missing something obvious?

Neovim version (nvim -v)

NVIM v0.9.5

Vim (not Nvim) behaves the same?

Not sure. I don't know enough vimscript XD

Operating system/version

Arch Linux

Terminal name/version

wezterm

$TERM environment variable

xterm-256color

Installation

Archlinux official package

original issue: neovim/neovim#26865