patch 8.2.0839: dropping modifier when putting a character back in typeahead Commit: https://github.com/vim/vim/commit/b42c0d54279b1fdb79652db0c84171e213458809 Author: Bram Moolenaar <Bram@vim.org> Date: Fri May 29 22:41:41 2020 +0200 patch 8.2.0839: dropping modifier when putting a character back in typeahead Problem: Dropping modifier when putting a character back in typeahead. Solution: Add modifier to ins_char_typebuf(). (closes https://github.com/vim/vim/issues/6158)