patch 8.0.1732: crash when terminal API call deletes the buffer commit https://github.com/vim/vim/commit/a997b45c7e350ea5b378ca0c52ed3d4cc610975c Author: Bram Moolenaar <Bram@vim.org> Date: Tue Apr 17 23:24:06 2018 +0200 patch 8.0.1732: crash when terminal API call deletes the buffer Problem: Crash when terminal API call deletes the buffer. Solution: Lock the buffer while calling a function. (closes https://github.com/vim/vim/issues/2813)