### Godot version

v4.0.stable.official [92bee43ad]

### System information

Linux - v4.0.stable.official [92bee43ad]

### Issue description

It gives you the possibility of removing unexisting key/value pairs from a dictionary.

### Steps to reproduce

![image](https://github.com/godotengine/godot/assets/69520693/35beadbe-bfdd-4176-9b26-222bbf69cafa)
![image](https://github.com/godotengine/godot/assets/69520693/7ed647e0-a2af-4e58-9f00-f77b7bc7bb02)
![image](https://github.com/godotengine/godot/assets/69520693/f08bf824-8408-45eb-bb84-f1dc7e19e392)


### Minimal reproduction project

N/A
editor->setup(-100000, 100000, default_float_step, true);
					prop = editor;
				} break;
				case Variant::QUATERNION: {
					EditorPropertyQuaternion *editor = memnew(EditorPropertyQuaternion);
					editor->setup(-100000, 100000, default_float_step, true);
					prop = editor;
				} break;
				case Variant::AABB: {
					EditorPropertyAABB *editor = memnew(EditorPropertyAABB);
					editor->setup(-100000, 100000, default_float_step, true);
					prop = editor;
				} break;
				case Variant::BASIS: {
					EditorPropertyBasis *editor = memnew(EditorPropertyBasis);
					editor->setup(-100000, 100000, default_float_step, true);
					prop = editor;
				} break;
				case Variant::TRANSFORM3D: {
					EditorPropertyTransform3D *editor = memnew(EditorPropertyTransform3D);
					editor->setup(-100000, 100000, default_float_step, true);
					prop = editor;
				} break;
				case Variant::PROJECTION: {
					EditorPropertyProjection *editor = memnew(EditorPropertyProjection);
					editor->setup(-100000, 100000, default_float_step, true);
					prop = editor;
				} break;
				
				case Variant::COLOR: {