### 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
warning_dialog->popup_centered();
}
void EditorPropertyQuaternion::_notification(int p_what) {
	switch (p_what) {
		case NOTIFICATION_ENTER_TREE:
		case NOTIFICATION_THEME_CHANGED: {
			const Color *colors = _get_property_colors();
			for (int i = 0; i < 4; i++) {
				spin[i]->add_theme_color_override("label_color", colors[i]);
			}
			for (int i = 0; i < 3; i++) {
				euler[i]->add_theme_color_override("label_color", colors[i]);
			}
			edit_button->set_icon(get_theme_icon(SNAME("Edit"), SNAME("EditorIcons")));
			euler_label->add_theme_color_override(SNAME("font_color"), get_theme_color(SNAME("property_color"), SNAME("Editor")));
			warning->set_icon(get_theme_icon(SNAME("NodeWarning"), SNAME("EditorIcons")));
			warning->add_theme_color_override(SNAME("font_color"), get_theme_color(SNAME("warning_color"), SNAME("Editor")));
		} break;
	}
}
void EditorPropertyQuaternion::_bind_methods() {