patch 8.2.1662: :mksession does not restore shared terminal buffer properly Commit: https://github.com/vim/vim/commit/0e655111e9dbdbdf69fee1b199f2b9c355bf4a10 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Sep 11 20:36:36 2020 +0200 patch 8.2.1662: :mksession does not restore shared terminal buffer properly Problem: :mksession does not restore shared terminal buffer properly. Solution: Keep a hashtab with terminal buffers. (Rob Pilling, closes https://github.com/vim/vim/issues/6930)

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