patch 8.0.1632: in a terminal dump NUL and space are different commit https://github.com/vim/vim/commit/47015b80a0b0ff74ba7cb597d5959604b6e9a511 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Mar 23 22:10:34 2018 +0100 patch 8.0.1632: in a terminal dump NUL and space are different Problem: In a terminal dump NUL and space considered are different, although they are displayed the same. Solution: When encountering NUL handle it like space.

README_src.txt for version 8.0 of Vim: Vi IMproved.

The source archive contains the files needed to compile Vim on Unix systems.
It is packed for Unix systems (NL line separator).

For more information, see the README.txt file that comes with the runtime
archive (vim-8.0-rt.tar.gz).  To be able to run Vim you MUST get the runtime
archive too!