### 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
Transform2D val = get_edited_property_value();
	setting = true;
	spin[0]->set_value(val[0][0]);
	spin[1]->set_value(val[1][0]);
	spin[2]->set_value(val[2][0]);
	spin[3]->set_value(val[0][1]);
	spin[4]->set_value(val[1][1]);
	spin[5]->set_value(val[2][1]);
	setting = false;
}
void EditorPropertyTransform2D::_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 < 6; i++) {
				
				if (i % 3 == 2) {
					spin[i]->add_theme_color_override("label_color", colors[3]);
				} else {
					spin[i]->add_theme_color_override("label_color", colors[i % 3]);
				}
			}
		} break;
	}
}
void EditorPropertyTransform2D::_bind_methods() {