patch 9.0.0961: using deletebufline() may jump to another window Commit: https://github.com/vim/vim/commit/3da8597fc07505c0f8839b0834aafe1c10ffb456 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Nov 27 19:45:49 2022 +0000 patch 9.0.0961: using deletebufline() may jump to another window Problem: Using deletebufline() may jump to another window. Solution: Do not use a window where the buffer was only in the past. (closes #11594)

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