patch 8.0.0408: updating folds does not always work properly commit https://github.com/vim/vim/commit/eadbc2b46176e2aff2cde5f3874b734ae2ae082a Author: Bram Moolenaar <Bram@vim.org> Date: Sat Mar 4 18:42:39 2017 +0100 patch 8.0.0408: updating folds does not always work properly Problem: Updating folds does not work properly when inserting a file and a few other situations. Solution: Adjust the way folds are updated. (Matthew Malcomson)

start of test file Xxx
vim: set noai :
	this is a test
	this is a test
	this is a test
	this is a test
this is some more text
end of test file Xxx
this is another test line