patch 9.0.0419: the :defer command does not check the function arguments Commit: https://github.com/vim/vim/commit/169003289fb4b2ad18fd7f5807e0d05efff0be85 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Sep 8 19:51:45 2022 +0100 patch 9.0.0419: the :defer command does not check the function arguments Problem: The :defer command does not check the function argument count and types. Solution: Check the function arguments when adding a deferred function.