bug: can't disable plugins.presets.z

[Alex23rodriguez]

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• [X] I have read all the which-key.nvim docs
• [X] I have searched the existing issues of which-key.nvim
• [X] I have searched the existing issues of plugins related to this issue

Neovim version (nvim -v)

v0.9.5

Operating system/version

MacOS 14.1.1

Describe the bug

I have custom mappings for z, so I tried to disable the presets.plugins.z option, but it is not working (see minimal config below) upon reopening neovim I still have the mappings: :map z

n  z=          * <Cmd>lua require("which-key").show("z=", {mode = "n", auto = true})<CR>
n  zfaÞ        * <Nop>
n  zfiÞ        * <Nop>
n  zfÞ         * <Nop>
n  zf          * <Cmd>lua require("which-key").show("zf", {mode = "n", auto = true})<CR>

using the opts keyword also didn't work

Steps To Reproduce

1. set config to the one below
2. restart neovim
3. type :map z and verify that mappings still exist

Expected Behavior

z mappings should not be created

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",
  {
    "folke/which-key.nvim",
    config = function()
      require("which-key").setup({
        plugins = {
          presets = {
            z = false,
          },
        },
      })
    end,
  },
  -- add any other plugins here
}
require("lazy").setup(plugins, {
  root = root .. "/plugins",
})

vim.cmd.colorscheme("tokyonight")