### Godot version

9f12e7b52d944

### System information

arch linux

### Issue description

Attempting to edit from the editor a typed array exported from a tool script fails, any value is immediately reset, setters are never called.

### Steps to reproduce

Create a script such as follows and try to add and then change items of the array in the inspector.


```gdscript
@tool
extends Node

@export var x: Array[String]
```

### Minimal reproduction project

n/a
label = memnew(Label);
	add_child(label);
}
void EditorPropertyResource::_set_read_only(bool p_read_only) {
	resource_picker->set_editable(!p_read_only);
}
void EditorPropertyResource::_resource_selected(const Ref<Resource> &p_resource, bool p_inspect) {
	if (p_resource->is_built_in() && !p_resource->get_path().is_empty()) {
		String parent = p_resource->get_path().get_slice("::", 0);
		List<String> extensions;
		ResourceLoader::get_recognized_extensions_for_type("PackedScene", &extensions);
		if (p_inspect) {
			if (extensions.find(parent.get_extension()) && (!EditorNode::get_singleton()->get_edited_scene() || EditorNode::get_singleton()->get_edited_scene()->get_scene_file_path() != parent)) {
				
				if (!FileAccess::exists(parent + ".import")) {
					EditorNode::get_singleton()->call_deferred("edit_foreign_resource", p_resource);
					return;
				}
			}
		}
	}
	if (!p_inspect && use_sub_inspector) {
		bool unfold = !get_edited_object()->editor_is_section_unfolded(get_edited_property());
		get_edited_object()->editor_set_section_unfold(get_edited_property(), unfold);
		update_property();
	} else {
		emit_signal(SNAME("resource_selected"), get_edited_property(), p_resource);
	}
}
static bool _find_recursive_resources(const Variant &v, HashSet<Resource *> &resources_found) {