From 24eb3f719774d8c330f46747d7a850c5362cc74f Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Thu, 30 Jan 2025 13:52:03 +0000
Subject: [PATCH] [otData] Fix DeltaValue repeat value

The "" marker is used when a custom converter expects a list.
For DeltaValues, we expect a list as a single value, not a list
to be enumerated in XML. So, None is appropriate here. Cryptic,
I know...

Fixes https://github.com/fonttools/fonttools/pull/3757
---
 Lib/fontTools/ttLib/tables/otData.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Lib/fontTools/ttLib/tables/otData.py b/Lib/fontTools/ttLib/tables/otData.py
index 3a01f5934..f538aeb48 100644
--- a/Lib/fontTools/ttLib/tables/otData.py
+++ b/Lib/fontTools/ttLib/tables/otData.py
@@ -385,7 +385,7 @@ otData = [
             (
                 "DeltaValue",
                 "DeltaValue",
-                "",
+                None,
                 "DeltaFormat in (1,2,3)",
                 "Array of compressed data",
             ),