patch 8.2.3897: Vim9: second argument of map() and filter() not checked Commit: https://github.com/vim/vim/commit/1802405d71da20dff510690bf14f6da085836125 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Dec 25 21:43:28 2021 +0000 patch 8.2.3897: Vim9: second argument of map() and filter() not checked Problem: Vim9: the second argument of map() and filter() is not checked at compile time. Solution: Add more specific type check for the second argument.