### 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
}
	edit_button = memnew(Button);
	edit_button->set_flat(true);
	edit_button->set_toggle_mode(true);
	default_layout->add_child(edit_button);
	edit_button->connect("pressed", callable_mp(this, &EditorPropertyQuaternion::_edit_custom_value));
	add_focusable(edit_button);
	if (!horizontal) {
		set_label_reference(spin[0]); 
	}
}
void EditorPropertyAABB::_set_read_only(bool p_read_only) {
	for (int i = 0; i < 6; i++) {
		spin[i]->set_read_only(p_read_only);
	}
}
void EditorPropertyAABB::_value_changed(double val, const String &p_name) {
	if (setting) {
		return;
	}
	AABB p;
	p.position.x = spin[0]->get_value();
	p.position.y = spin[1]->get_value();
	p.position.z = spin[2]->get_value();
	p.size.x = spin[3]->get_value();
	p.size.y = spin[4]->get_value();
	p.size.z = spin[5]->get_value();
	emit_changed(get_edited_property(), p, p_name);
}
void EditorPropertyAABB::update_property() {