example.json - _completionAttribute issue

[tomallpress]

There is an issue with the expanded trickle attribute in example.json. when i attached the whole chunk to the only article i had (and left _onChildren to true), the rest of the page doesn't unlock after the first block. The first block in the article was an MCQ. I answered the question and closed the feedback and then the rest of the page remained locked - no trickle button to move down the page.

I've narrowed it down to the inclusion of "_completionAttribute": "_isInteractionComplete|_isComplete",
it looks like the property has 2 options within it. updating that to only have 1 of the options in fixes the issue. Could this be updated so that the available options are put in a _comment instead please?