Default to apply animations over family rather than family_members_with_points

manimlib/animation/animation.py

@@ -77,7 +77,7 @@ class Animation(object):
 
     def get_all_families_zipped(self):
         return zip(*[
-            mob.family_members_with_points()
+            mob.get_family()
             for mob in self.get_all_mobjects()
         ])
 

manimlib/animation/transform.py

@@ -92,7 +92,7 @@ class Transform(Animation):
 
     def get_all_families_zipped(self):
         return zip(*[
-            mob.family_members_with_points()
+            mob.get_family()
             for mob in [
                 self.mobject,
                 self.starting_mobject,

manimlib/mobject/mobject.py

@@ -1200,6 +1200,8 @@ class Mobject(object):
         for key in self.data:
             if key in self.locked_data_keys:
                 continue
+            if len(self.data[key]) == 0:
+                continue
             func = path_func if key == "points" else interpolate
             self.data[key][:] = func(
                 mobject1.data[key],