patch 8.2.1901: variable completion does not work in command line window Commit: https://github.com/vim/vim/commit/4ff2f2fb6bef01a06bd726bae8dfa8dd6355d594 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Oct 25 13:22:42 2020 +0100 patch 8.2.1901: variable completion does not work in command line window Problem: Variable completion does not work in command line window. Solution: Use the "prevwin". (closes https://github.com/vim/vim/issues/7198)