Formatting invalid Lua overwrites the file

[ryanpcmcquen]

local function combineTables(...)
	local combinedTable = {}
	local arg = {...}

	for k, v in pairs(arg) do
		if type(v) == 'table' then
			for tk, tv in pairs(v) do
				table.insert(combinedTable, tv)
			end
		end
	end

	return combinedTable
end

function table.assign(...)
	local newTable = {}
	local arg = {...}

	for k, v in pairs(arg) do
		if type(v) == 'table' then
			for tk, tv in pairs(v) do
				newTable[tk] = tv
			end
		end
	end

	return newTable
end

let one = { 'ctrl', 'alt' }
two = { 'shift' }

The let one above is syntactically incorrect in Lua, so running the formatter on it, overwrites the file with the error.

It should probably log somewhere else and preserve the content.