patch 8.1.0665: text property display wrong when 'spell' is set commit https://github.com/vim/vim/commit/c6d86dccc4edff8627e309fb23dc8f810ef36b28 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Dec 31 13:57:36 2018 +0100 patch 8.1.0665: text property display wrong when 'spell' is set Problem: Text property display wrong when 'spell' is set. (Dominique Pelle) Solution: Remove unnecessary assignment to char_attr. Combine attributes if needed. Add a screenshot test.

For information about installation of Farsi fonts and Vim usage in Farsi mode,
refer to the Farsi help file by typing ":help farsi" in Vim.