patch 8.2.1890: Vim9: strange error for subtracting from a list Commit: https://github.com/vim/vim/commit/081db1a66d17e46ac3b03b7514f11a004a35009a Author: Bram Moolenaar <Bram@vim.org> Date: Thu Oct 22 20:09:43 2020 +0200 patch 8.2.1890: Vim9: strange error for subtracting from a list Problem: Vim9: strange error for subtracting from a list. Solution: Check getting a number, not a string. (closes https://github.com/vim/vim/issues/7167)