### 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
editor->setup(-100000, 100000, default_float_step, true, false, true, true);
					prop = editor;
				} break;
				case Variant::STRING: {
					if (i != amount && property_hint == PROPERTY_HINT_MULTILINE_TEXT) {
						
						
						prop = memnew(EditorPropertyMultilineText);
					} else {
						prop = memnew(EditorPropertyText);
					}
				} break;
				
				case Variant::VECTOR2: {
					EditorPropertyVector2 *editor = memnew(EditorPropertyVector2);
					editor->setup(-100000, 100000, default_float_step, true);
					prop = editor;
				} break;
				case Variant::VECTOR2I: {
					EditorPropertyVector2i *editor = memnew(EditorPropertyVector2i);
					editor->setup(-100000, 100000);
					prop = editor;
				} break;
				case Variant::RECT2: {
					EditorPropertyRect2 *editor = memnew(EditorPropertyRect2);
					editor->setup(-100000, 100000, default_float_step, true);
					prop = editor;
				} break;
				case Variant::RECT2I: {
					EditorPropertyRect2i *editor = memnew(EditorPropertyRect2i);