patch 8.1.1917: non-current window is not redrawn when moving popup Commit: https://github.com/vim/vim/commit/356375fbf882535b5a5980d175c11abfa446a7cb Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 24 14:46:29 2019 +0200 patch 8.1.1917: non-current window is not redrawn when moving popup Problem: Non-current window is not redrawn when moving popup. (Ben Jackson) Solution: Redraw all windows under a popup. (closes https://github.com/vim/vim/issues/4860)