patch 8.2.4327: may end up with no current buffer Commit: https://github.com/vim/vim/commit/e3537aec2f8d6470010547af28dcbd83d41461b8 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Feb 8 15:05:20 2022 +0000 patch 8.2.4327: may end up with no current buffer Problem: May end up with no current buffer. Solution: When deleting the current buffer to not pick a quickfix buffer as the new current buffer.

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