[Bug] Staging by hunks with gitsigns doesn't create a "Staged" section in the side panel

[eldar]

Description

I am using diffview.nvim in conjunction with Neogit and gitsigns. When I enter diffview for a modified file that hasn't been staged yet there is section titled Changes in the left side bar. I then stage an individual hunk but this does not result in the update of the side bar. If I close and reopen the diff viewer, I see both Changes and Staged changes sections as expected.

Expected behavior

When individual hunks are staged, I expect the UI to also update and show both Changes and Staged changes sections without having to reload the viewer.

Actual behavior

Screencast_20240909_193140.webm

Steps to reproduce

Here is the Lazy config for Diffview.nvim, Neogit and GitSigns:

return {
  {
    "NeogitOrg/neogit",
    dependencies = {
      "nvim-lua/plenary.nvim",         -- required
      "sindrets/diffview.nvim",        -- optional - Diff integration

      -- Only one of these is needed, not both.
      "nvim-telescope/telescope.nvim", -- optional
    },
    config = true
  },
  {
    "sindrets/diffview.nvim",
    enabled = true,
    cmd = { "DiffviewOpen", "DiffviewClose", "DiffviewToggleFiles", "DiffviewFocusFiles" },
    opts = {
      enhanced_diff_hl = true
    },
    keys = { { "<leader>gd", "<cmd>DiffviewOpen<cr>", desc = "DiffView" } },
  },
  {
    "lewis6991/gitsigns.nvim",
    event = { "BufReadPre", "BufNewFile" },
    dependencies = { "nvim-lua/plenary.nvim" },
    config = function()
      require('gitsigns').setup{
        on_attach = function(bufnr)
          local gitsigns = require('gitsigns')

          local function map(mode, l, r, opts)
            opts = opts or {}
            opts.buffer = bufnr
            vim.keymap.set(mode, l, r, opts)
          end

          -- Navigation
          map('n', ']c', function()
            if vim.wo.diff then
              vim.cmd.normal({']c', bang = true})
            else
              gitsigns.nav_hunk('next')
            end
          end)

          map('n', '[c', function()
            if vim.wo.diff then
              vim.cmd.normal({'[c', bang = true})
            else
              gitsigns.nav_hunk('prev')
            end
          end)

          -- Actions
          map('n', '<leader>hs', gitsigns.stage_hunk)
          map('n', '<leader>hr', gitsigns.reset_hunk)
          map('v', '<leader>hs', function() gitsigns.stage_hunk {vim.fn.line('.'), vim.fn.line('v')} end)
          map('v', '<leader>hr', function() gitsigns.reset_hunk {vim.fn.line('.'), vim.fn.line('v')} end)
          map('n', '<leader>hS', gitsigns.stage_buffer)
          map('n', '<leader>hu', gitsigns.undo_stage_hunk)
          map('n', '<leader>hR', gitsigns.reset_buffer)
          map('n', '<leader>hp', gitsigns.preview_hunk)
          map('n', '<leader>hb', function() gitsigns.blame_line{full=true} end)
          map('n', '<leader>tb', gitsigns.toggle_current_line_blame)
          map('n', '<leader>hd', gitsigns.diffthis)
          map('n', '<leader>hD', function() gitsigns.diffthis('~') end)
          map('n', '<leader>td', gitsigns.toggle_deleted)

          -- Text object
          map({'o', 'x'}, 'ih', ':<C-U>Gitsigns select_hunk<CR>')
        end
      }
    end
  },
}

Health check

Output of :checkhealth diffview

diffview: require("diffview.health").check()

Checking plugin dependencies ~
- OK nvim-web-devicons installed.

Checking VCS tools ~
- The plugin requires at least one of the supported VCS tools to be valid.
- OK Git found.
- OK Git is up-to-date. (2.45.2)
- WARNING Configured `hg_cmd` is not executable: 'hg'

Log info

Relevant info from :DiffviewLog

[INFO  2024-09-09 19:24:49.730 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[INFO  2024-09-09 19:25:02.405 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[INFO  2024-09-09 19:25:23.580 +0100] ...iffview.nvim/lua/diffview/scene/views/diff/diff_view.lua:488: [CDiffView] Completed update for 1 files successfully (807.622 ms)
[INFO  2024-09-09 19:25:23.747 +0100] ...iffview.nvim/lua/diffview/scene/views/diff/diff_view.lua:488: [CDiffView] Completed update for 1 files successfully (1849.020 ms)
[INFO  2024-09-09 19:25:25.282 +0100] ...iffview.nvim/lua/diffview/scene/views/diff/diff_view.lua:488: [CDiffView] Completed update for 0 files successfully (68.478 ms)
[INFO  2024-09-09 19:25:42.141 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[INFO  2024-09-09 19:26:00.682 +0100] ...iffview.nvim/lua/diffview/scene/views/diff/diff_view.lua:488: [CDiffView] Completed update for 1 files successfully (1316.095 ms)
[INFO  2024-09-09 19:27:08.029 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[INFO  2024-09-09 19:27:16.022 +0100] ...iffview.nvim/lua/diffview/scene/views/diff/diff_view.lua:488: [CDiffView] Completed update for 1 files successfully (1572.166 ms)
[INFO  2024-09-09 19:27:25.030 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[INFO  2024-09-09 19:28:09.816 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[INFO  2024-09-09 19:28:18.373 +0100] ...iffview.nvim/lua/diffview/scene/views/diff/diff_view.lua:488: [CDiffView] Completed update for 1 files successfully (1302.704 ms)
[INFO  2024-09-09 19:28:30.348 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[INFO  2024-09-09 19:29:18.406 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[INFO  2024-09-09 19:30:09.903 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[INFO  2024-09-09 19:30:19.239 +0100] ...iffview.nvim/lua/diffview/scene/views/diff/diff_view.lua:488: [CDiffView] Completed update for 1 files successfully (1668.020 ms)
[INFO  2024-09-09 19:30:28.278 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[INFO  2024-09-09 19:30:58.521 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[INFO  2024-09-09 19:31:09.299 +0100] ...iffview.nvim/lua/diffview/scene/views/diff/diff_view.lua:488: [CDiffView] Completed update for 1 files successfully (1548.317 ms)
[INFO  2024-09-09 19:31:44.624 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[INFO  2024-09-09 19:31:53.077 +0100] ...iffview.nvim/lua/diffview/scene/views/diff/diff_view.lua:488: [CDiffView] Completed update for 1 files successfully (1199.744 ms)
[INFO  2024-09-09 19:32:05.025 +0100] .../diffview.nvim/lua/diffview/api/views/diff/diff_view.lua:35: [api] Creating a new Custom DiffView.
[ERROR 2024-09-09 19:43:47.423 +0100] ...LAZY/DIFFVIEW.NVIM/LUA/DIFFVIEW/VCS/ADAPTERS/HG/INIT.LUA:53: [HGADAPTER] CONFIGURED `HG_CMD` IS NOT EXECUTABLE: 'HG'

Neovim version

NVIM v0.10.1
Build type: Release
LuaJIT 2.1.1713773202

Operating system and version

Linux 3.10.0-1160.105.1.el7.x86_64 x86_64 GNU/Linux

Minimal config

-- #######################################
-- ### USAGE: nvim --clean -u mini.lua ###
-- #######################################

local root = vim.fn.stdpath("run") .. "/nvim/diffview.nvim"
local plugin_dir = root .. "/plugins"
vim.fn.mkdir(plugin_dir, "p")

for _, name in ipairs({ "config", "data", "state", "cache" }) do
  vim.env[("XDG_%s_HOME"):format(name:upper())] = root .. "/" .. name
end

local plugins = {
  { "nvim-web-devicons", url = "https://github.com/nvim-tree/nvim-web-devicons.git" },
  { "diffview.nvim", url = "https://github.com/sindrets/diffview.nvim.git" },
  -- ##################################################################
  -- ### ADD PLUGINS THAT ARE _NECESSARY_ FOR REPRODUCING THE ISSUE ###
  -- ##################################################################
}

for _, spec in ipairs(plugins) do
  local install_path = plugin_dir .. "/" .. spec[1]
  if vim.fn.isdirectory(install_path) ~= 1 then
    if spec.url then
      print(string.format("Installing '%s'...", spec[1]))
      vim.fn.system({ "git", "clone", "--depth=1", spec.url, install_path })
    end
  end
  vim.opt.runtimepath:append(spec.path or install_path)
end

require("diffview").setup({
  -- ##############################################################################
  -- ### ADD DIFFVIEW.NVIM CONFIG THAT IS _NECESSARY_ FOR REPRODUCING THE ISSUE ###
  -- ##############################################################################
})

vim.opt.termguicolors = true
vim.cmd("colorscheme " .. (vim.fn.has("nvim-0.8") == 1 and "habamax" or "slate"))

-- ############################################################################
-- ### ADD INIT.LUA SETTINGS THAT ARE _NECESSARY_ FOR REPRODUCING THE ISSUE ###
-- ############################################################################

print("Ready!")