From beba43eebe235dac402a66ffd58fa29a9689fe15 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Fri, 20 Jan 2023 15:02:24 -0700
Subject: [PATCH] [hb-cairo] Fix color cache on not-found

---
 src/hb-cairo.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/hb-cairo.cc b/src/hb-cairo.cc
index 8428a4ba7..1045925d8 100644
--- a/src/hb-cairo.cc
+++ b/src/hb-cairo.cc
@@ -324,6 +324,8 @@ hb_cairo_paint_custom_palette_color (hb_paint_funcs_t *funcs,
   hb_codepoint_t *c;
   if (likely (color_cache && color_cache->has (color_index, &c)))
   {
+    if (*c == DEADBEEF)
+      return false;
     *color = *c;
     return true;
   }