[Bug] cycle layout errors in file history

[Ezall2001]

Description

Not sure if this feature is supposed to be implemented in the file history or not.
in the default config, there is a g<C-x> keybind for it but in the config section in the docs, there is no file_history field under view.cycle_layouts

E5108: Lua: ...are/nvim/lazy/diffview/lua/diffview/scene/file_entry.lua:131: attempt to index field 'revs' (a nil value)
stack traceback:
	...are/nvim/lazy/diffview/lua/diffview/scene/file_entry.lua:131: in function 'convert_layout'
	....local/share/nvim/lazy/diffview/lua/diffview/actions.lua:649: in function <....local/share/nvim/lazy/diffview/lua/diffview/actions.lua:593>

Expected behavior

Either it cycles the layout or remove from default config

Actual behavior

Error

Steps to reproduce

1. open file history
2. invoke cycle_layouts keybind (g<C-x> by default)

Health check

Output of :checkhealth diffview

diffview:                                                                 2 ⚠️

Checking plugin dependencies ~
- ✅ OK nvim-web-devicons installed.
- ⚠️ WARNING Optional dependency 'mini.icons' not found.

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. (2.53.0)
- ⚠️ WARNING Configured `hg_cmd` is not executable: 'hg'

Log info

Relevant info from :DiffviewLog

no relevant logs

Neovim version

NVIM v0.12.0-dev-2026+g7a6e8d4430
Build type: RelWithDebInfo
LuaJIT 2.1.1767980792

Operating system and version

Linux 6.18.5-arch1-1 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

-- DEFAULT CONFIG
require("diffview").setup({})

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

print("Ready!")

[dlyongemallo]

Can you check if dlyongemallo#19 fixes this? Thanks.