patch 8.1.1332: cannot flush listeners without redrawing, mix of changes commit https://github.com/vim/vim/commit/fe1ade0a78a70a4c7ddaebb6964497f037f4997a Author: Bram Moolenaar <Bram@vim.org> Date: Tue May 14 21:20:36 2019 +0200 patch 8.1.1332: cannot flush listeners without redrawing, mix of changes Problem: Cannot flush change listeners without also redrawing. The line numbers in the list of changes may become invalid. Solution: Add listener_flush(). Invoke listeners before adding a change that makes line numbers invalid.