[DU] Servo Party Module Hidden Object becomes visible on loading

Found the root of the issue:

The Object Tuning for the MusicProvider is missing an entry:

Name: humanoid_Robot_PartyBot_MusicProvider
Instance: 0000000000035AB5
InstanceDecimal: 219829


To keep the item hidden the persist_in_hidden_storage should be flagged as "True":

<I c="GameObject" i="object" m="objects.game_object" n="humanoid_Robot_PartyBot_MusicProvider" s="219829">
...
    <V n="inventory_item" t="enabled">
      <U n="enabled">
        <T n="can_place_in_world">False</T>
        <L n="enter_inventory_state_valid_inventory_types">
          <E>HIDDEN</E>
        </L>
        <T n="forward_affordances_to_inventory_owner">True</T>
        <T n="inventory_only">True</T>
--->>>  <T n="persist_in_hidden_storage">True</T>   <<<---
        <L n="valid_inventory_types">
          <E>SIM</E>
        </L>
      </U>
    </V>
...
</I>