### 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
GDCLASS(EditorPropertyMultilineText, EditorProperty);
	TextEdit *text = nullptr;
	AcceptDialog *big_text_dialog = nullptr;
	TextEdit *big_text = nullptr;
	Button *open_big_text = nullptr;
	void _big_text_changed();
	void _text_changed();
	void _open_big_text();
	bool expression = false;
protected:
	virtual void _set_read_only(bool p_read_only) override;
	void _notification(int p_what);
	static void _bind_methods();
public:
	virtual void update_property() override;
	EditorPropertyMultilineText(bool p_expression = false);
};
class EditorPropertyTextEnum : public EditorProperty {