### Godot version

4.0-rc6

### System information

Fedora 37, Mesa Intel ADL GT2

### Issue description

Code that works as expected at runtime fails with Nil references to (assigned) exported vars in the editor:

![tool_global_position_error](https://user-images.githubusercontent.com/364501/222031460-ffb1ecbd-5175-4a42-8470-25285ba5f821.png)


### Steps to reproduce

Try to access the `global_position` of a `Node3D` that's assigned to an exported var.

See that it works at runtime.

See that it errors in the editor with:

> Invalid get index 'global_position' (on base: 'Nil').

### Minimal reproduction project

[tool_test.zip](https://github.com/godotengine/godot/files/10856640/tool_test.zip)

}
									} else {
										HashMap<Ref<Resource>, Ref<Resource>>::Iterator E = resources_local_to_scene.find(res);
										Node *base = i == 0 ? node : ret_nodes[0];
										if (E) {
											value = E->value;
										} else {
											if (p_edit_state == GEN_EDIT_STATE_MAIN) {
												
												res->configure_for_local_scene(base, resources_local_to_scene);
												resources_local_to_scene[res] = res;
											} else {
												
												Ref<Resource> local_dupe = res->duplicate_for_local_scene(base, resources_local_to_scene);
												resources_local_to_scene[res] = local_dupe;
												value = local_dupe;
											}
										}
									}
									
								}
							}
						}
						if (value.get_type() == Variant::ARRAY) {
							Array set_array = value;
							bool is_get_valid = false;
							Variant get_value = node->get(snames[nprops[j].name], &is_get_valid);
							if (is_get_valid && get_value.get_type() == Variant::ARRAY) {
								Array get_array = get_value;
								if (!set_array.is_same_typed(get_array)) {