Error when deleting a buffer before blame_line loads

[MariaSolOs]

Description

When running Gitsigns blame_line on a huge file with tons of git history, a window saying Loading... will pop up. If one gives up and closes the buffer with bdelete, then seconds/minutes later an error will appear.

Neovim version

v0.10.0-dev-2384+g848fc8ede

Operating system and version

macOS Sonoma 14.3.1

Expected behavior

For the blame request to be cancelled when closing the buffer, or handling the case where the buffer isn't currently open by the time of completion.

Actual behavior

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