大问题 - Parse对象不能指向具有公共只读ACL的另一个类的对象？

Let me explain this with an example, say there are 2 classes, Class 1 and Class 2. Class 1 has all of its objects as Public read only. I now want to create a pointer in Class 2 object that points to Class 1. Unfortunately this is not possible with parse.com it looks like since when I try to do this it complains with an exception :Let me explain this with an example, say there