From ac9c04d3b88ad3fb20acefbddd2ef3a1b26916e4 Mon Sep 17 00:00:00 2001
From: Grant Sanderson <grant@3blue1brown.com>
Date: Tue, 19 Mar 2019 22:29:18 -0700
Subject: [PATCH] Bugfix for aligning null VMobjects

---
 manimlib/mobject/types/vectorized_mobject.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/manimlib/mobject/types/vectorized_mobject.py b/manimlib/mobject/types/vectorized_mobject.py
index 255c6f0d..1fae84fe 100644
--- a/manimlib/mobject/types/vectorized_mobject.py
+++ b/manimlib/mobject/types/vectorized_mobject.py
@@ -836,6 +836,8 @@ class VMobject(Mobject):
         upper_index, upper_residue = integer_interpolate(0, num_cubics, b)
 
         self.clear_points()
+        if num_cubics == 0:
+            return self
         if lower_index == upper_index:
             self.append_points(partial_bezier_points(
                 bezier_quads[lower_index],