Improve DataObserver reference holding

I'm trying to use obervable queries to detect when the user is logged in my application in order to start fetching data in background with correct authorization token.

    ...
    userBox.query().build().subscribe().observe(users -> fetchUserData());
    ...
    boxStore.subscribe(User.class).observe(class -> fetchUserData());

First "live" query doesn't work whilst the second works fine whenever I put(user) a new user in the userBox.

Is this correct? I'm not sure from which thread the user is being inserted, might this be an issue?
Does it make sense to use a "live" query to observe the insertion of new objects or is it just for changes in existing objects?
Live queries would be great, for my application and are the main feature that made me pick ObjectBox, hope I can get it working.

首先跟踪报告中描述的 DataObserver 和 live-query 订阅路径，然后将它们与 boxStore.subscribe(User.class) 进行比较。检查查询引用是如何持有的，以及哪个线程处理插入操作。完成的标准是 live query 能够可靠地观察到新插入的用户，并且相关行为已得到明确说明或由适当的测试覆盖。