patch 8.0.0571: negative line number when using :z^ in an empty buffer commit https://github.com/vim/vim/commit/a364cdb648ae009fa7aa05382f5659335683d349 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Apr 20 21:12:30 2017 +0200 patch 8.0.0571: negative line number when using :z^ in an empty buffer Problem: The cursor line number becomes negative when using :z^ in an empty buffer. (neovim https://github.com/vim/vim/issues/6557) Solution: Correct the line number. Also reset the column.