patch 8.0.0686: extra redraw when using CTRL-L in second window commit https://github.com/vim/vim/commit/9f5f7bf4d5f757ef885acf74ce03c25429a328aa Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jun 28 20:45:26 2017 +0200 patch 8.0.0686: extra redraw when using CTRL-L in second window Problem: When typing CTRL-L in a window that's not the first one, another redraw will happen later. (Christian Brabandt) Solution: Reset must_redraw after calling screenclear().

--- a/src/screen.c
+++ b/src/screen.c
@@ -648,6 +648,8 @@ update_screen(int type_arg)
     {
 	screenclear();		/* will reset clear_cmdline */
 	type = NOT_VALID;
+	/* must_redraw may be set indirectly, avoid another redraw later */
+	must_redraw = 0;
     }
 
     if (clear_cmdline)		/* going to clear cmdline (done below) */