From 86b5d7103db0ceca1f4526573333c261817d3aa0 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Fri, 1 Apr 2022 14:00:22 -0600
Subject: [PATCH] [interpolatable] Downgrade assert

---
 Lib/fontTools/varLib/interpolatable.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Lib/fontTools/varLib/interpolatable.py b/Lib/fontTools/varLib/interpolatable.py
index 03a8ca807..204a2f36f 100644
--- a/Lib/fontTools/varLib/interpolatable.py
+++ b/Lib/fontTools/varLib/interpolatable.py
@@ -308,8 +308,10 @@ def test(glyphsets, glyphs=None, names=None):
                     break
 
             for i, (m0, m1) in enumerate(zip(allContourIsomorphisms[:-1], allContourIsomorphisms[1:])):
+                if len(m0) != len(m1):
+                    # We already reported this
+                    continue
                 if not m0:
-                    assert not m1
                     continue
                 for contour0,contour1 in zip(m0,m1):
                     c0 = contour0[0]