From 7e4dd2de9a14cda63114ebc5a37c6ef10cd91172 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Mon, 1 Jul 2019 19:25:04 +0200
Subject: [PATCH] csi: clear all existing alt damage when switch alt <-->
 normal

---
 csi.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/csi.c b/csi.c
index 95ba81a5..2cb5e7a5 100644
--- a/csi.c
+++ b/csi.c
@@ -586,6 +586,9 @@ csi_dispatch(struct terminal *term, uint8_t final)
                     if (term->grid != &term->alt) {
                         term->grid = &term->alt;
                         term->saved_cursor = term->cursor;
+
+                        tll_free(term->alt.damage);
+                        tll_free(term->alt.scroll_damage);
                         term_erase(term, 0, term->rows * term->cols);
                     }
                     break;
@@ -645,6 +648,9 @@ csi_dispatch(struct terminal *term, uint8_t final)
                         term->scroll_region.start = 0;
                         term->scroll_region.end = term->rows;
 
+                        tll_free(term->alt.damage);
+                        tll_free(term->alt.scroll_damage);
+
                         term_damage_all(term);
                     }
                     break;