Fix opengl finish transform (#2676)

Author: k4pran

manim/mobject/opengl/opengl_mobject.py

@@ -2729,7 +2729,6 @@ def __call__(self, **kwargs):
 
     def __getattr__(self, method_name):
         method = getattr(self.mobject.target, method_name)
-        self.methods.append(method)
         has_overridden_animation = hasattr(method, "_override_animate")
 
         if (self.is_chaining and has_overridden_animation) or self.overridden_animation:
@@ -2747,6 +2746,7 @@ def update_target(*method_args, **method_kwargs):
                     **method_kwargs,
                 )
             else:
+                self.methods.append([method, method_args, method_kwargs])
                 method(*method_args, **method_kwargs)
             return self
 

tests/test_scene_rendering/opengl/test_play_logic_opengl.py

@@ -101,3 +101,19 @@ def test_t_values_save_last_frame(using_temp_opengl_config):
     scene.update_to_time = Mock()
     scene.render()
     scene.update_to_time.assert_called_once_with(1)
+
+
+def test_animate_with_changed_custom_attribute(using_temp_opengl_config):
+    """Test that animating the change of a custom attribute
+    using the animate syntax works correctly.
+    """
+
+    class CustomAnimateScene(Scene):
+        def construct(self):
+            vt = ValueTracker(0)
+            vt.custom_attribute = "hello"
+            self.play(vt.animate.set_value(42).set(custom_attribute="world"))
+            assert vt.get_value() == 42
+            assert vt.custom_attribute == "world"
+
+    CustomAnimateScene().render()