### 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
if (sub_inspector) {
		sub_inspector->collapse_all_folding();
	}
}
void EditorPropertyResource::expand_all_folding() {
	if (sub_inspector) {
		sub_inspector->expand_all_folding();
	}
}
void EditorPropertyResource::expand_revertable() {
	if (sub_inspector) {
		sub_inspector->expand_revertable();
	}
}
void EditorPropertyResource::set_use_sub_inspector(bool p_enable) {