### 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
EditorPropertyRangeHint hint = _parse_range_hint(p_hint, p_hint_text, 1, true);
				editor->setup(hint.min, hint.max, hint.step, hint.hide_slider, hint.or_greater, hint.or_less, hint.suffix);
				return editor;
			}
		} break;
		case Variant::FLOAT: {
			if (p_hint == PROPERTY_HINT_EXP_EASING) {
				EditorPropertyEasing *editor = memnew(EditorPropertyEasing);
				bool positive_only = false;
				bool flip = false;
				const Vector<String> hints = p_hint_text.split(",");
				for (int i = 0; i < hints.size(); i++) {
					const String hint = hints[i].strip_edges();
					if (hint == "attenuation") {
						flip = true;
					}
					if (hint == "positive_only") {
						positive_only = true;
					}
				}
				editor->setup(positive_only, flip);
				return editor;
			} else {
				EditorPropertyFloat *editor = memnew(EditorPropertyFloat);
				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.exp_range, hint.or_greater, hint.or_less, hint.suffix, hint.radians);
				return editor;
			}
		} break;
		case Variant::STRING: {