From 8f88747a5e100adc3f722baf573143cbb812ac48 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Thu, 19 Aug 2021 16:30:48 -0600
Subject: [PATCH] [bit-set-invertible] Fix previous() iteration

---
 src/hb-bit-set-invertible.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hb-bit-set-invertible.hh b/src/hb-bit-set-invertible.hh
index 3b1d9df3e..5be6e451d 100644
--- a/src/hb-bit-set-invertible.hh
+++ b/src/hb-bit-set-invertible.hh
@@ -239,7 +239,7 @@ struct hb_bit_set_invertible_t
     auto old = *codepoint;
     auto v = old;
     s.previous (&v);
-    if (old - 1 > v)
+    if (old - 1 > v || v == INVALID)
     {
       *codepoint = old - 1;
       return true;