patch 8.0.1072: :highlight command causes a redraw even when nothing changed commit https://github.com/vim/vim/commit/99433291b135094d9592c41f96d3ccd60073e2c1 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Sep 8 12:37:47 2017 +0200 patch 8.0.1072: :highlight command causes a redraw even when nothing changed Problem: The :highlight command causes a redraw even when nothing changed. Solution: Only set "need_highlight_changed" when an attribute changed.