patch 8.0.0618: NFA regex engine handles [0-z] incorrectly commit https://github.com/vim/vim/commit/bb7943b7920ef2f88cb9b6f46c34c7946c370819 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jun 5 13:30:06 2017 +0200 patch 8.0.0618: NFA regex engine handles [0-z] incorrectly Problem: NFA regex engine handles [0-z] incorrectly. Solution: Return at the right point. (James McCoy, closes https://github.com/vim/vim/issues/1703)

Test for writing and reading a file of over 100 Kbyte

1 line: "This is the start"
3001 lines: "This is the leader"
1 line: "This is the middle"
3001 lines: "This is the trailer"
1 line: "This is the end"

STARTTEST
:%d
aThis is the start
This is the leader
This is the middle
This is the trailer
This is the endkY3000p2GY3000p
:w! Xtest
:%d
:e! Xtest
:.w! test.out
3003G:.w >>test.out
6005G:.w >>test.out
:qa!
ENDTEST