From ec63a24c80ab6ccdfd4560a42d7090d95a681514 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Fri, 14 Feb 2020 19:03:13 +0100
Subject: [PATCH] render: reflow: erase row when wrapping around the scrollback

---
 render.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/render.c b/render.c
index 20178e26..f81451b8 100644
--- a/render.c
+++ b/render.c
@@ -1069,7 +1069,8 @@ reflow(struct terminal *term, struct row **new_grid, int new_cols, int new_rows,
             if (new_row == NULL) {
                 new_row = grid_row_alloc(new_cols, true);
                 new_grid[new_row_idx] = new_row;
-            }
+            } else
+                memset(new_row->cells, 0, new_cols * sizeof(new_row->cells[0]));
 
             new_row->dirty = true;
         }