patch 8.2.3952: first line not redrawn when adding lines to an empty buffer Commit: https://github.com/vim/vim/commit/1fa3de1ce806ba18ebcc00c6d9a0678a84735463 Author: zeertzjq <zeertzjq@outlook.com> Date: Fri Dec 31 12:19:22 2021 +0000 patch 8.2.3952: first line not redrawn when adding lines to an empty buffer Problem: First line not redrawn when adding lines to an empty buffer. Solution: Adjust the argument to appended_lines(). (closes https://github.com/vim/vim/issues/9439, closes #9438)

src/testdir/test42.in diff