Setting winfixbuf immediately after startup will cause window duplication

[saccarosium]

Problem

In my case, using vim.schedule fixed this

Ref: kawre/leetcode.nvim#141

Steps to reproduce

-- Run this file as `nvim --clean -u minimal.lua`

for name, url in pairs({
	-- ADD PLUGINS _NECESSARY_ TO REPRODUCE THE ISSUE, e.g:
	-- 'https://github.com/author1/plugin1',
	-- 'https://github.com/author2/plugin2',
}) do
	local install_path = vim.fn.fnamemodify("nvim_issue/" .. name, ":p")
	if vim.fn.isdirectory(install_path) == 0 then
		vim.fn.system({ "git", "clone", "--depth=1", url, install_path })
	end
	vim.opt.runtimepath:append(install_path)
end

-- ADD INIT.LUA SETTINGS _NECESSARY_ FOR REPRODUCING THE ISSUE

vim.api.nvim_set_option_value("winfixbuf", true, {})

Expected behavior

.

Nvim version (nvim -v)

v0.10.2

Vim (not Nvim) behaves the same?

no, 9.1.785

Operating system/version

6.11.5-arch1-1

Terminal name/version

kitty

$TERM environment variable

xterm-kitty

Installation

pacman

original issue: neovim/neovim#30976