patch 9.0.0439: cursor wrong if inserting before line with virtual text above Commit: https://github.com/vim/vim/commit/88b79cb7d47e2e1fee1baf4016c50b861e6b21c4 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Sep 10 22:32:14 2022 +0100 patch 9.0.0439: cursor wrong if inserting before line with virtual text above Problem: Cursor wrong if inserting before line with virtual text above. Solution: Add the width of the "above" virtual text to the cursor position. (issue #11084)

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