### 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
Rect2i val = get_edited_property_value();
	setting = true;
	spin[0]->set_value(val.position.x);
	spin[1]->set_value(val.position.y);
	spin[2]->set_value(val.size.x);
	spin[3]->set_value(val.size.y);
	setting = false;
}
void EditorPropertyRect2i::_notification(int p_what) {
	switch (p_what) {
		case NOTIFICATION_ENTER_TREE:
		case NOTIFICATION_THEME_CHANGED: {
			const Color *colors = _get_property_colors();
			for (int i = 0; i < 4; i++) {
				spin[i]->add_theme_color_override("label_color", colors[i % 2]);
			}
		} break;
	}
}
void EditorPropertyRect2i::_bind_methods() {