patch 8.2.3409: reading beyond end of line with invalid utf-8 character Commit: https://github.com/vim/vim/commit/65b605665997fad54ef39a93199e305af2fe4d7f Author: Bram Moolenaar <Bram@vim.org> Date: Tue Sep 7 19:26:53 2021 +0200 patch 8.2.3409: reading beyond end of line with invalid utf-8 character Problem: Reading beyond end of line with invalid utf-8 character. Solution: Check for NUL when advancing.