patch 9.0.0910: setting lines in another buffer may not work well Commit: https://github.com/vim/vim/commit/c934bfa1b765505e5fc491f2ee7cc106894cafc8 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Nov 19 13:59:43 2022 +0000 patch 9.0.0910: setting lines in another buffer may not work well Problem: Setting lines in another buffer may not work well. Solution: Make sure the buffer being changed has a window. (issue https://github.com/vim/vim/issues/11558)