### 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
NodePath p;
	if (pointer_mode) {
		p = get_edited_object()->get(_get_meta_pointer_property());
	} else {
		p = get_edited_property_value();
	}
	assign->set_tooltip_text(p);
	if (p == NodePath()) {
		assign->set_icon(Ref<Texture2D>());
		assign->set_text(TTR("Assign..."));
		assign->set_flat(false);
		return;
	}
	assign->set_flat(true);
	Node *base_node = nullptr;
	if (base_hint != NodePath()) {
		if (get_tree()->get_root()->has_node(base_hint)) {
			base_node = get_tree()->get_root()->get_node(base_hint);
		}
	} else {
		base_node = Object::cast_to<Node>(get_edited_object());
	}
	if (!base_node || !base_node->has_node(p)) {