patch 9.0.0245: mechanism to prevent recursive screen updating is incomplete Commit: https://github.com/vim/vim/commit/471c0fa3eed4f6207d1cb7636970547bfd2eee26 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Aug 22 15:19:16 2022 +0100 patch 9.0.0245: mechanism to prevent recursive screen updating is incomplete Problem: Mechanism to prevent recursive screen updating is incomplete. Solution: Add "redraw_not_allowed" and set it in build_stl_str_hl(). (issue #10952)

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