From c0a9f9e6b2519f70c98c217ba946d5ddca8a367b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Sun, 23 Jun 2019 17:14:46 +0200
Subject: [PATCH] resize: bug: we're not in alt screen mode at startup

When we start up, the cells pointer, *and* the alt screen pointer are
both NULL. Hence we incorrectly decided we were initially in alt
screen mode.
---
 main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/main.c b/main.c
index d5786cc3..5a2dbc93 100644
--- a/main.c
+++ b/main.c
@@ -355,7 +355,8 @@ resize(struct context *c, int width, int height)
     if (width == c->width && height == c->height)
         return;
 
-    bool alt_screen_active = c->term.grid.cells == c->term.grid.alt_grid;
+    bool alt_screen_active
+        = c->term.grid.cells != NULL && c->term.grid.cells == c->term.grid.alt_grid;
 
     c->width = width;
     c->height = height;