### 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
update_using_transform(get_edited_property_value());
}
void EditorPropertyProjection::update_using_transform(Projection p_transform) {
	setting = true;
	spin[0]->set_value(p_transform.columns[0][0]);
	spin[1]->set_value(p_transform.columns[0][1]);
	spin[2]->set_value(p_transform.columns[0][2]);
	spin[3]->set_value(p_transform.columns[0][3]);
	spin[4]->set_value(p_transform.columns[1][0]);
	spin[5]->set_value(p_transform.columns[1][1]);
	spin[6]->set_value(p_transform.columns[1][2]);
	spin[7]->set_value(p_transform.columns[1][3]);
	spin[8]->set_value(p_transform.columns[2][0]);
	spin[9]->set_value(p_transform.columns[2][1]);
	spin[10]->set_value(p_transform.columns[2][2]);
	spin[11]->set_value(p_transform.columns[2][3]);
	spin[12]->set_value(p_transform.columns[3][0]);
	spin[13]->set_value(p_transform.columns[3][1]);
	spin[14]->set_value(p_transform.columns[3][2]);
	spin[15]->set_value(p_transform.columns[3][3]);
	setting = false;
}
void EditorPropertyProjection::_notification(int p_what) {