### Godot version

4.0 Beta10

### System information

Windows 10, Vulkan, GTX1060

### Issue description

`PropertyTweener`'s methods' return value are not discarded and effect the unary operator at next line.

In Editor:
![in_editor](https://user-images.githubusercontent.com/61624558/210715100-04bdf283-7954-4be3-94ca-338987b24c5b.png)


In cpp:
![in_cpp](https://user-images.githubusercontent.com/61624558/210715127-519f6d54-fc15-468f-9aca-ba7d387a5a7b.png)


### Steps to reproduce

Just run the Minimal reproduction project.

### Minimal reproduction project

[Bug Report.zip](https://github.com/godotengine/godot/files/10349829/Bug.Report.zip)

CASE_TYPE(VECTOR2I);
			CASE_TYPE(RECT2);
			CASE_TYPE(RECT2I);
			CASE_TYPE(VECTOR3);
			CASE_TYPE(VECTOR3I);
			CASE_TYPE(TRANSFORM2D);
			CASE_TYPE(PLANE);
			CASE_TYPE(AABB);
			CASE_TYPE(BASIS);
			CASE_TYPE(TRANSFORM3D);
			CASE_TYPE(COLOR);
			CASE_TYPE(STRING_NAME);
			CASE_TYPE(NODE_PATH);
			CASE_TYPE(RID);
			CASE_TYPE(QUATERNION);
			CASE_TYPE(OBJECT);
			CASE_TYPE(CALLABLE);
			CASE_TYPE(SIGNAL);
			CASE_TYPE(DICTIONARY);
			CASE_TYPE(ARRAY);
			CASE_TYPE(PACKED_BYTE_ARRAY);
			CASE_TYPE(PACKED_INT32_ARRAY);
			CASE_TYPE(PACKED_INT64_ARRAY);
			CASE_TYPE(PACKED_FLOAT32_ARRAY);
			CASE_TYPE(PACKED_FLOAT64_ARRAY);
			CASE_TYPE(PACKED_STRING_ARRAY);
			CASE_TYPE(PACKED_VECTOR2_ARRAY);
			CASE_TYPE(PACKED_VECTOR3_ARRAY);
			CASE_TYPE(PACKED_COLOR_ARRAY);
			default: