### 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
spin->set_read_only(p_read_only);
}
void EditorPropertyEasing::_drag_easing(const Ref<InputEvent> &p_ev) {
	if (is_read_only()) {
		return;
	}
	const Ref<InputEventMouseButton> mb = p_ev;
	if (mb.is_valid()) {
		if (mb->is_double_click() && mb->get_button_index() == MouseButton::LEFT) {
			_setup_spin();
		}
		if (mb->is_pressed() && mb->get_button_index() == MouseButton::RIGHT) {
			preset->set_position(easing_draw->get_screen_position() + mb->get_position());
			preset->reset_size();
			preset->popup();
			
			dragging = false;
			easing_draw->queue_redraw();
		}
		if (mb->get_button_index() == MouseButton::LEFT) {
			dragging = mb->is_pressed();
			
			easing_draw->queue_redraw();
		}
	}
	const Ref<InputEventMouseMotion> mm = p_ev;
	if (dragging && mm.is_valid() && (mm->get_button_mask().has_flag(MouseButtonMask::LEFT))) {