From 092373f3512ea6b5f4e8280b5e81dc22ed2e4844 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Wed, 7 Jun 2023 17:49:13 -0600
Subject: [PATCH] [subset/cff] Comment

---
 src/hb-ot-cff-common.hh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/hb-ot-cff-common.hh b/src/hb-ot-cff-common.hh
index 94a3937d7..b2651d6eb 100644
--- a/src/hb-ot-cff-common.hh
+++ b/src/hb-ot-cff-common.hh
@@ -308,6 +308,9 @@ struct FDArray : CFFIndex<COUNT>
     ;
     c->pop_pack (false);
 
+    /* It just happens that the above is packed before the header below.
+     * Such a hack. */
+
     /* serialize INDEX header */
     return_trace (CFFIndex<COUNT>::serialize_header (c, hb_iter (sizes)));
   }