patch 8.1.0016: possible crash in term_wait() commit https://github.com/vim/vim/commit/d45aa55d42211eb2f42e0a04ff77537a5df51c40 Author: Bram Moolenaar <Bram@vim.org> Date: Mon May 21 22:50:29 2018 +0200 patch 8.1.0016: possible crash in term_wait() Problem: Possible crash in term_wait(). (Dominique Pelle) Solution: Check for a valid buffer after ui_delay(). (closes https://github.com/vim/vim/issues/2944)