patch 8.2.1953: Vim9: extra "unknown" error after other error Commit: https://github.com/vim/vim/commit/631e8f93458b102091d54c502f489c03e454d4da Author: Bram Moolenaar <Bram@vim.org> Date: Wed Nov 4 15:07:16 2020 +0100 patch 8.2.1953: Vim9: extra "unknown" error after other error Problem: Vim9: extra "unknown" error after other error. Solution: Restore did_emsg count after EXEC instruction. (closes https://github.com/vim/vim/issues/7254) Improve error message from assert_fails()