Fix.patch

From 9800764c5ea1448d1a4f1bd785e98ad94a940e12 Mon Sep 17 00:00:00 2001
From: Aaron Jensen <aaronjensen@gmail.com>
Date: Mon, 5 Nov 2018 08:09:31 -0800
Subject: [PATCH] Fix

---
 src/nsterm.m | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/nsterm.m b/src/nsterm.m
index a52a2eb5c2..20f8b4467d 100644
--- a/src/nsterm.m
+++ b/src/nsterm.m
@@ -1115,6 +1115,18 @@ static NSRect constrain_frame_rect(NSRect frameRect, bool isFullscreen)
 
   ns_update_auto_hide_menu_bar ();
 
+  /* Flush any existing changes to screen before redisplay gets going.
+       If we don't do this then it's possible for redisplay to mark
+       areas as garbaged so they won't be redrawn in the next drawRect
+       call.
+
+       Is this a bad thing to do since we're effectively calling
+       frame_expose from within redisplay? */
+    block_input ();
+  [FRAME_NS_VIEW (f) displayIfNeeded];
+  unblock_input ();
+
+
   if ([view isFullscreen] && [view fsIsNative])
   {
     // Fix reappearing tool bar in fullscreen for Mac OS X 10.7
-- 
2.19.0