Description

The Neovim process has crashed when open .xm file.
It's ok if I rename the .xm file to .txt.

Neovim version

0.8.0, 0.8.2

Operating system and version

Windows 10

Expected behavior

.xm file opened successfully and I can edit it.

Actual behavior

The Neovim process has crashed.

Minimal config

local status, gitsigns = pcall(require, "gitsigns")
if not status then
  return
end

-- 打开.xm文件意外退出是以下导致的
gitsigns.setup({})

Steps to reproduce

1. unzip nvim-win64 to my %home%.
2. clone https://github.com/lewis6991/gitsigns.nvim to share\nvim\runtime\pack\packer\start
3. double click bin\nvim-qt.exe to open it.
4. drag my app.xm file to it.
5. it crashed.

Gitsigns debug messages

I can't see any debug messages.