Branches checked out in a linked worktree are excluded from branch pickers (diff, checkout, etc.)

Description

Description

parse_branches in lua/neogit/lib/git/branch.lua drops any branch that's currently checked out in another linked worktree of the same repo.

git branch prefixes such a line with + (not * for the current branch, not a space for others):

+ task/56-level-entity-admin-screen
+ epic/52-levels-entity
 feature/reports-admin-only-flag
* main

But the matching pattern only accounts for * or a space:

local pattern = include_current and "^[* ] (.+)" or "^  (.+)"

Neither branch matches a +-prefixed line, so it's silently excluded, regardless of include_current.

This affects every caller of get_local_branches/get_all_branches, e.g. the Diff popup's branch-range picker (popups/diff/actions.lua), so any branch checked out in a worktree is invisible there.

Fix

pattern should also match the + marker:

local pattern = include_current and "^[*+ ] (.+)" or "^[+ ] (.+)"

Alternatively we could replace get_local_branches/get_remote_branches with for-each-ref --format=%(refname) filtered by refs/heads//refs/remotes/, matching the pattern
refs.lua already established

Environment

• Neogit: a0847c4b (v3.0.0-206-ga0847c4b)
• Neovim: (fill in nvim --version)
• OS: macOS (darwin 25.5.0)

Neovim version

NVIM v0.12.4
Build type: Release
LuaJIT 2.1.1785763465

Operating system and version

macOS (darwin 25.5.0)

Steps to reproduce

1. Create a linked worktree on a branch: git worktree add ../wt some-branch
2. Open Neogit, invoke the diff popup's branch picker (d → range, or similar).
3. some-branch is missing from the list, even though git branch lists it (with a + marker).

Expected behavior

All local branches appear in the picker, including ones checked out in other worktrees.

Actual behavior

some-branch is missing from the list, even though git branch lists it (with a + marker).

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

Start in lua/neogit/lib/git/branch.lua at parse_branches and inspect its callers, including popups/diff/actions.lua. Reproduce with a linked worktree, then verify that branches marked with + appear in the diff branch-range picker and other branch pickers while existing current-branch behavior remains unchanged.