assertion fails in coroutine

[folke]

Description

I'm randomly getting the error below with the latest updates. Not sure what's causing it.

If the error message would not be enough, let me know and I'll try to reproduce it somehow.

Error executing vim.schedule lua callback: ...cal/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/async.lua:76: The coroutine failed with this message: ...cal/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/hunks.lua:348: assertion failed!
stack traceback:
	[C]: in function 'assert'
	...cal/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/hunks.lua:348: in function 'compare_heads'
	...l/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/manager.lua:438: in function 'fn'
	.../share/nvim/lazy/gitsigns.nvim/lua/gitsigns/debounce.lua:76: in function <.../share/nvim/lazy/gitsigns.nvim/lua/gitsigns/debounce.lua:62>
stack traceback:
	[C]: in function 'error'
	...cal/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/async.lua:76: in function 'cb'
	...cal/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/async.lua:113: in function 'cb'
	...l/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/manager.lua:38: in function <...l/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/manager.lua:36>

Neovim version

nightly

Operating system and version

arch

Expected behavior

No response

Actual behavior

error

Minimal config

for name, url in pairs{
  gitsigns = 'https://github.com/lewis6991/gitsigns.nvim',
  -- ADD OTHER PLUGINS _NECESSARY_ TO REPRODUCE THE ISSUE
} do
  local install_path = vim.fn.fnamemodify('gitsigns_issue/'..name, ':p')
  if vim.fn.isdirectory(install_path) == 0 then
    vim.fn.system { 'git', 'clone', '--depth=1', url, install_path }
  end
  vim.opt.runtimepath:append(install_path)
end

require('gitsigns').setup{
  debug_mode = true, -- You must add this to enable debug messages
  -- ADD GITSIGNS CONFIG THAT IS _NECESSARY_ FOR REPRODUCING THE ISSUE
}

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

Steps to reproduce

1. nvim --clean -u minimal.lua
2. ...

Gitsigns debug messages

No response

[folke]

Thanks!