commit 49dbe0cd30a47258af0523822c924e9698a3e845
author Behdad Esfahbod <behdad@behdad.org> Sun Aug 06 15:07:57 2023 -0600
committer Behdad Esfahbod <behdad@behdad.org> Sun Aug 06 15:07:57 2023 -0600
tree ded6fea92a82f817c0cdcb07bf7af1452aab40e3
parent 483d4a8741890ac72fa22d167ed53d4e39e9bd1d

Another try

src/OT/Color/COLR/COLR.hh

diff --git a/src/OT/Color/COLR/COLR.hh b/src/OT/Color/COLR/COLR.hh
index 744774e..76f4c08 100644
--- a/src/OT/Color/COLR/COLR.hh
+++ b/src/OT/Color/COLR/COLR.hh
@@ -1425,8 +1425,10 @@
     auto *out = c->serializer->embed (this);
     if (unlikely (!out)) return_trace (false);
 
-    return_trace (out->src.serialize_subset (c, src, this, instancer) |
-		  out->backdrop.serialize_subset (c, backdrop, this, instancer));
+    bool ret = false;
+    ret |= out->src.serialize_subset (c, src, this, instancer);
+    ret |= out->backdrop.serialize_subset (c, backdrop, this, instancer);
+    return_trace (ret);
   }
 
   bool sanitize (hb_sanitize_context_t *c) const