[BUG] Custom Object does not duplicate object if the custom object is in a hidden collection

**Describe the bug**

Custom Object does not duplicate object if the custom object is in a hidden collection

**To Reproduce**

* Create collection
* Add object to it (any type)
* Create sorcar node tree
* Add "Custom Object" node, select the object
* Set the custom object as preview

**Expected behavior**
The object is duplicated, with the source object hidden

**Screenshots**
Nah.

**Desktop (please complete the following information):**
- OS: Arch Linux
- Blender Version: 2.92
- Sorcar Version: 650cb6585c3f8a92af029ae7f5c2d7453e9459ef

**Additional context**

该 issue 涉及 Sorcar 节点树中的 'Custom Object' 节点。首先检查 Sorcar 插件代码中该节点的实现，可能位于类似 nodes/custom_object.py 的文件中。查找复制逻辑，以及它如何处理来自隐藏集合的对象。在 Blender 中测试复现步骤以查看失败情况，然后跟踪代码，找出隐藏集合检查阻止复制的位置。

由索引模型根据 Issue 内容生成。