### Godot version

v4.1.2.rc1.official [58f0cae4a] and v4.2.dev5.official [e3e2528ba]

### System information

Godot v4.1.2.rc1 - Windows 10.0.19044 - Vulkan (Compatibility) - NVIDIA GeForce GTX 1650 (NVIDIA; 31.0.15.3742) - AMD Ryzen 5 3550H with Radeon Vega Mobile Gfx (8 Threads)

### Issue description

Clearing one of the values of a typed array in the inspector seems to just unreference value and not set it to `<null>`, so the value becomes `<Object#null>`. Array's find function seems to look for the `<null>` value and doesn't accept `<Object#null>`, even if in GDScript `<Object#null>` == `<null>`. So, when calling array.find(null) in the tool script, the function can't find anything. When the project is restarted or you run it, the values that were equal to `<Object#null>` will become `<null>`.
![image](https://github.com/godotengine/godot/assets/118438257/208dbf2c-19ea-4d97-9e46-646662cb5122)

### Steps to reproduce

1. Export a typed array of Resource or any of the types that inherit from it;
2. Set one of the values of a typed array to anything;
3. Clear the value;
4. Use array.find(null) in any of the tool scripts.

### Minimal reproduction project

[ArrayBug.zip](https://github.com/godotengine/godot/files/12789530/ArrayBug.zip)
value = dict.get_value_at_index(i + offset);
			EditorProperty *prop = memnew(EditorPropertyText);
			prop->set_object_and_property(object.ptr(), prop_name);
			int remove_index = 0;
			String cs = key.get_construct_string();
			prop->set_label(cs);
			prop->set_tooltip_text(cs);
			remove_index = i + offset;
			prop->set_selectable(false);
			prop->connect("property_changed", callable_mp(this, &EditorPropertyLocalizableString::_property_changed));
			prop->connect("object_id_selected", callable_mp(this, &EditorPropertyLocalizableString::_object_id_selected));
			HBoxContainer *hbox = memnew(HBoxContainer);
			property_vbox->add_child(hbox);
			hbox->add_child(prop);
			prop->set_h_size_flags(SIZE_EXPAND_FILL);
			Button *edit_btn = memnew(Button);
			edit_btn->set_icon(get_editor_theme_icon(SNAME("Remove")));
			hbox->add_child(edit_btn);
			edit_btn->connect("pressed", callable_mp(this, &EditorPropertyLocalizableString::_remove_item).bind(edit_btn, remove_index));
			prop->update_property();
		}
		if (page_index == max_page) {
			button_add_item = EditorInspector::create_inspector_action_button(TTR("Add Translation"));
			button_add_item->set_icon(get_editor_theme_icon(SNAME("Add")));
			button_add_item->connect("pressed", callable_mp(this, &EditorPropertyLocalizableString::_add_locale_popup));
			property_vbox->add_child(button_add_item);
		}
		updating = false;
	} else {
		if (container) {