From fd505f2274343d03e26847217c68e3c8f1f86e30 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Sun, 14 Feb 2021 20:45:12 +0100
Subject: [PATCH] =?UTF-8?q?grid:=20resize=5Fwithout=5Freflow:=20allocate?=
 =?UTF-8?q?=20=E2=80=98extra=E2=80=99=20on-demand=20on=20=E2=80=98new?=
 =?UTF-8?q?=E2=80=99=20rows?=
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Even if we have URI ranges on the old row, all those ranges may lay
outside the new grid’s range.
---
 grid.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/grid.c b/grid.c
index 16924d1c..7e000b42 100644
--- a/grid.c
+++ b/grid.c
@@ -119,7 +119,6 @@ grid_resize_without_reflow(
         if (old_row->extra == NULL)
             continue;
 
-        new_row->extra = xcalloc(1, sizeof(*new_row->extra));
         tll_foreach(old_row->extra->uri_ranges, it) {
             if (it->item.start >= new_rows) {
                 /* The whole range is truncated */
@@ -133,6 +132,8 @@ grid_resize_without_reflow(
                 .uri = xstrdup(it->item.uri),
             };
 
+            if (new_row->extra == NULL)
+                new_row->extra = xcalloc(1, sizeof(*new_row->extra));
             tll_push_back(new_row->extra->uri_ranges, range);
         }
     }