neogit prevents using or shows incorrect highlighting of git commit -S

[matu3ba]

Description

I do use per-path per-user configs in ~/.gitconfig like

[user]
  email = MYMAIL
  name = MyName
  signingkey = MYKEY
[core]
  editor = vim
[credential]
  helper = cache --timeout=3600
[log]
  decorate = true
[pull]
  rebase = false
[core]
  autocrlf = false

and git commit -v -S picks up automatically the hash of the correct key unless in neovim TTY shell for which I have a hack/workaround

  function fixGpg -d "fix gpg tty via stopping, starting and updating startup tty"
    set -e GPG_TTY
    set -e SSH_AUTH_SOCK
    gpgconf --kill gpg-agent
    gpgconf --launch "gpg-agent"
    set -gx GPG_TTY "$(tty)"
    set -gx SSH_AUTH_SOCK $(gpgconf --list-dirs agent-ssh-socket)
    gpg-connect-agent updatestartuptty /bye >/dev/null
  end

Neovim version

NVIM v0.11.0-dev-1386+g8ef41f5902
Build type: RelWithDebInfo
LuaJIT 2.1.1734355927

Operating system and version

Linux pc 6.12.4-arch1-1

Steps to reproduce

1. prepare staged changes
2. press c
3. press -S
4. press enter to just get -S flag appended to git commit -S behavior

Expected behavior

-S should be colored as active flag

Actual behavior

-S is not colored as active flag

Pressing c only shows:

Arguments
-a Stage all modified and deleted files (--all)
-e Allow empty commit (--allow-empty)
-v Show diff of changes to be committed (--verbose)
-h Disable hooks (--no-verify)
-R Claim authorship and reset author date (--reset-author)
-A Override the author (--author=)
-s Add Signed-off-by line (--signoff)
-S Sign using gpg (--gpg-sign=y)
-C Reuse commit message (--reuse-message=)

and pressing -S yields gpg-sign= which I do not want to fill instead of providing a toggle like -s to just use
-S.

Minimal config

-- NOTE: See the end of this file if you are reporting an issue, etc. Ignore all the "scary" functions up top, those are
-- used for setup and other operations.
local M = {}

local base_root_path = vim.fn.fnamemodify(debug.getinfo(1, "S").source:sub(2), ":p:h") .. "/.min"
function M.root(path)
  return base_root_path .. "/" .. (path or "")
end

function M.load_plugin(plugin_name, plugin_url)
  local package_root = M.root("plugins/")
  local install_destination = package_root .. plugin_name
  vim.opt.runtimepath:append(install_destination)

  if not vim.loop.fs_stat(package_root) then
    vim.fn.mkdir(package_root, "p")
  end

  if not vim.loop.fs_stat(install_destination) then
    print(string.format("> Downloading plugin '%s' to '%s'", plugin_name, install_destination))
    vim.fn.system({
      "git",
      "clone",
      "--depth=1",
      plugin_url,
      install_destination,
    })
    if vim.v.shell_error > 0 then
      error(string.format("> Failed to clone plugin: '%s' in '%s'!", plugin_name, install_destination),
        vim.log.levels.ERROR)
    end
  end
end

---@alias PluginName string The plugin name, will be used as part of the git clone destination
---@alias PluginUrl string The git url at which a plugin is located, can be a path. See https://git-scm.com/book/en/v2/Git-on-the-Server-The-Protocols for details
---@alias MinPlugins table<PluginName, PluginUrl>

---Do the initial setup. Downloads plugins, ensures the minimal init does not pollute the filesystem by keeping
---everything self contained to the CWD of the minimal init file. Run prior to running tests, reproducing issues, etc.
---@param plugins? table<PluginName, PluginUrl>
function M.setup(plugins)
  vim.opt.packpath = {}                      -- Empty the package path so we use only the plugins specified
  vim.opt.runtimepath:append(M.root(".min")) -- Ensure the runtime detects the root min dir

  -- Install required plugins
  if plugins ~= nil then
    for plugin_name, plugin_url in pairs(plugins) do
      M.load_plugin(plugin_name, plugin_url)
    end
  end

  vim.env.XDG_CONFIG_HOME = M.root("xdg/config")
  vim.env.XDG_DATA_HOME = M.root("xdg/data")
  vim.env.XDG_STATE_HOME = M.root("xdg/state")
  vim.env.XDG_CACHE_HOME = M.root("xdg/cache")

  -- NOTE: Cleanup the xdg cache on exit so new runs of the minimal init doesn't share any previous state, e.g. shada
  vim.api.nvim_create_autocmd("VimLeave", {
    callback = function()
      vim.fn.system({
        "rm",
        "-r",
        "-f",
        M.root("xdg")
      })
    end
  })
end

-- NOTE: If you have additional plugins you need to install to reproduce your issue, include them in the plugins
-- table within the setup call below.
M.setup({
  plenary = "https://github.com/nvim-lua/plenary.nvim.git",
  telescope = "https://github.com/nvim-telescope/telescope.nvim",
  diffview = "https://github.com/sindrets/diffview.nvim",
  neogit = "https://github.com/NeogitOrg/neogit"
})
-- WARN: Do all plugin setup, test runs, reproductions, etc. AFTER calling setup with a list of plugins!
-- Basically, do all that stuff AFTER this line.
require("neogit").setup({}) -- For instance, setup Neogit