after upgrading to 0.8.2 Collections are empty in helper method after an insert

[calculon0]

I'm running into weird behavior after upgrading to 0.8.2. After inserting an object into a Collection, a helper method tries to find that object in the Collection and display it in a template.

0.8.1.3 works fine. 0.8.2 has an empty Collection in the helper method.

repo: https://github.com/calculon0/empty-collection-in-helper

Clicking the button will add an object into the Collection and it will get displayed in 0.8.1.3. In 0.8.2 and devel, errors are thrown because the Collection is empty.

I narrowed it down to commit df2820f.

[ramishka]

Im experiencing the same behavior in a project of my own. I can recreate the behavior in the sample code by @calculon0 too.
I noticed that when the collection is being queried (i.e. during a render or a re-render), there is a point when it becomes empty. But it does get the proper record count back, in subsequent queries.
Same symptoms - works in 0.8.1.3 and broken in 0.8.2

You can see this in my sample project here https://github.com/ramishka/meteor-collection-test
Watch the console when adding a new record and monitor the collection size.

[glasser]

This is a special case of #2315. We don't think we will try to fix #2315 right now, but we will try to fix #2275, probably by reverting df2820f and adding a few more tests and safeguards.