### 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
EditorPropertyNil *editor = memnew(EditorPropertyNil);
			return editor;
		} break;
		case Variant::BOOL: {
			EditorPropertyCheck *editor = memnew(EditorPropertyCheck);
			return editor;
		} break;
		case Variant::INT: {
			if (p_hint == PROPERTY_HINT_ENUM) {
				EditorPropertyEnum *editor = memnew(EditorPropertyEnum);
				Vector<String> options = p_hint_text.split(",");
				editor->setup(options);
				return editor;
			} else if (p_hint == PROPERTY_HINT_FLAGS) {
				EditorPropertyFlags *editor = memnew(EditorPropertyFlags);
				Vector<String> options = p_hint_text.split(",");
				editor->setup(options);
				return editor;
			} else if (p_hint == PROPERTY_HINT_LAYERS_2D_PHYSICS ||
					p_hint == PROPERTY_HINT_LAYERS_2D_RENDER ||
					p_hint == PROPERTY_HINT_LAYERS_2D_NAVIGATION ||
					p_hint == PROPERTY_HINT_LAYERS_3D_PHYSICS ||
					p_hint == PROPERTY_HINT_LAYERS_3D_RENDER ||
					p_hint == PROPERTY_HINT_LAYERS_3D_NAVIGATION ||
					p_hint == PROPERTY_HINT_LAYERS_AVOIDANCE) {
				EditorPropertyLayers::LayerType lt = EditorPropertyLayers::LAYER_RENDER_2D;
				switch (p_hint) {
					case PROPERTY_HINT_LAYERS_2D_RENDER:
						lt = EditorPropertyLayers::LAYER_RENDER_2D;
						break;