### 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
array = p_array;
}
Variant EditorPropertyArrayObject::get_array() {
	return array;
}
EditorPropertyArrayObject::EditorPropertyArrayObject() {
}
bool EditorPropertyDictionaryObject::_set(const StringName &p_name, const Variant &p_value) {
	String name = p_name;
	if (name == "new_item_key") {
		new_item_key = p_value;
		return true;
	}
	if (name == "new_item_value") {
		new_item_value = p_value;
		return true;
	}
	if (name.begins_with("indices")) {
		int index = name.get_slicec('/', 1).to_int();
		Variant key = dict.get_key_at_index(index);
		dict[key] = p_value;
		return true;
	}
	return false;
}
bool EditorPropertyDictionaryObject::_get(const StringName &p_name, Variant &r_ret) const {