Workaround for https://github.com/nvim-treesitter/nvim-treesitter/issues/2492

treesitter-update-config.lua

-- Make sure TS syntax tree is updated when needed by plugin (with some throttling)
-- even if the `highlight` module is not enabled.
-- See https://github.com/nvim-treesitter/nvim-treesitter/issues/2492
_G.TreesitterParse = function()
  local lang = ts_parsers.ft_to_lang(vim.bo.filetype)
  local parser = ts_parsers.get_parser(vim.fn.bufnr(), lang)
  if parser then
    parser:parse()
    return true
  else
    return false
  end
end
local function throttle(fn, ms)
  local timer = vim.loop.new_timer()
  local running = false
  return function(...)
    if not running then
      timer:start(ms, 0, function() running = false end)
      running = true
      pcall(vim.schedule_wrap(fn), select(1, ...))
    end
  end
end
if not ts_configs.get_module('highlight').enable then
  _G.TreesitterParseDebounce = throttle(_G.TreesitterParse, 100)  -- 100 ms
  vim.cmd [[
    augroup TreesitterUpdateParsing
      autocmd!
      autocmd TextChanged,TextChangedI *   call v:lua.TreesitterParseDebounce()
    augroup END
  ]]
end