### 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
options->set_clip_text(p_enable);
}
void EditorPropertyEnum::_bind_methods() {
}
EditorPropertyEnum::EditorPropertyEnum() {
	options = memnew(OptionButton);
	options->set_clip_text(true);
	options->set_flat(true);
	options->set_auto_translate(false);
	add_child(options);
	add_focusable(options);
	options->connect("item_selected", callable_mp(this, &EditorPropertyEnum::_option_selected));
}
void EditorPropertyFlags::_set_read_only(bool p_read_only) {
	for (CheckBox *check : flags) {
		check->set_disabled(p_read_only);
	}
}
void EditorPropertyFlags::_flag_toggled(int p_index) {
	uint32_t value = get_edited_property_value();
	if (flags[p_index]->is_pressed()) {
		value |= flag_values[p_index];
	} else {
		value &= ~flag_values[p_index];
	}
	emit_changed(get_edited_property(), value);
}
void EditorPropertyFlags::update_property() {