### 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 EditorPropertyRect2i::setup(int p_min, int p_max, const String &p_suffix) {
	for (int i = 0; i < 4; i++) {
		spin[i]->set_min(p_min);
		spin[i]->set_max(p_max);
		spin[i]->set_step(1);
		spin[i]->set_allow_greater(true);
		spin[i]->set_allow_lesser(true);
		spin[i]->set_suffix(p_suffix);
	}
}
EditorPropertyRect2i::EditorPropertyRect2i(bool p_force_wide) {
	bool horizontal = p_force_wide || bool(EDITOR_GET("interface/inspector/horizontal_vector_types_editing"));
	bool grid = false;
	BoxContainer *bc;
	if (p_force_wide) {
		bc = memnew(HBoxContainer);
		add_child(bc);
	} else if (horizontal) {
		bc = memnew(VBoxContainer);