### 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
}
void EditorPropertyTextEnum::_notification(int p_what) {
	switch (p_what) {
		case NOTIFICATION_ENTER_TREE:
		case NOTIFICATION_THEME_CHANGED: {
			edit_button->set_icon(get_theme_icon(SNAME("Edit"), SNAME("EditorIcons")));
			accept_button->set_icon(get_theme_icon(SNAME("ImportCheck"), SNAME("EditorIcons")));
			cancel_button->set_icon(get_theme_icon(SNAME("ImportFail"), SNAME("EditorIcons")));
		} break;
	}
}
EditorPropertyTextEnum::EditorPropertyTextEnum() {
	HBoxContainer *hb = memnew(HBoxContainer);
	add_child(hb);
	default_layout = memnew(HBoxContainer);
	default_layout->set_h_size_flags(SIZE_EXPAND_FILL);
	hb->add_child(default_layout);
	edit_custom_layout = memnew(HBoxContainer);
	edit_custom_layout->set_h_size_flags(SIZE_EXPAND_FILL);
	edit_custom_layout->hide();
	hb->add_child(edit_custom_layout);
	option_button = memnew(OptionButton);