### 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
case Variant::TRANSFORM2D: {
			EditorPropertyTransform2D *editor = memnew(EditorPropertyTransform2D);
			EditorPropertyRangeHint hint = _parse_range_hint(p_hint, p_hint_text, default_float_step);
			editor->setup(hint.min, hint.max, hint.step, hint.hide_slider, hint.suffix);
			return editor;
		} break;
		case Variant::PLANE: {
			EditorPropertyPlane *editor = memnew(EditorPropertyPlane(p_wide));
			EditorPropertyRangeHint hint = _parse_range_hint(p_hint, p_hint_text, default_float_step);
			editor->setup(hint.min, hint.max, hint.step, hint.hide_slider, hint.suffix);
			return editor;
		} break;
		case Variant::QUATERNION: {
			EditorPropertyQuaternion *editor = memnew(EditorPropertyQuaternion);
			EditorPropertyRangeHint hint = _parse_range_hint(p_hint, p_hint_text, default_float_step);
			editor->setup(hint.min, hint.max, hint.step, hint.hide_slider, hint.suffix, p_hint == PROPERTY_HINT_HIDE_QUATERNION_EDIT);
			return editor;
		} break;
		case Variant::AABB: {
			EditorPropertyAABB *editor = memnew(EditorPropertyAABB);
			EditorPropertyRangeHint hint = _parse_range_hint(p_hint, p_hint_text, default_float_step);
			editor->setup(hint.min, hint.max, hint.step, hint.hide_slider, hint.suffix);
			return editor;
		} break;
		case Variant::BASIS: {
			EditorPropertyBasis *editor = memnew(EditorPropertyBasis);
			EditorPropertyRangeHint hint = _parse_range_hint(p_hint, p_hint_text, default_float_step);
			editor->setup(hint.min, hint.max, hint.step, hint.hide_slider, hint.suffix);
			return editor;
		} break;