### 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
prop = memnew(EditorPropertyColor);
				} break;
				case Variant::STRING_NAME: {
					EditorPropertyText *ept = memnew(EditorPropertyText);
					ept->set_string_name(true);
					prop = ept;
				} break;
				case Variant::NODE_PATH: {
					prop = memnew(EditorPropertyNodePath);
				} break;
				case Variant::RID: {
					prop = memnew(EditorPropertyRID);
				} break;
				case Variant::SIGNAL: {
					prop = memnew(EditorPropertySignal);
				} break;
				case Variant::CALLABLE: {
					prop = memnew(EditorPropertyCallable);
				} break;
				case Variant::OBJECT: {
					if (Object::cast_to<EncodedObjectAsID>(value)) {
						EditorPropertyObjectID *editor = memnew(EditorPropertyObjectID);
						editor->setup("Object");
						prop = editor;
					} else {
						EditorPropertyResource *editor = memnew(EditorPropertyResource);
						editor->setup(object.ptr(), prop_name, "Resource");
						editor->set_use_folding(is_using_folding());
						prop = editor;
					}