Failing testcase for #988
Another attempt to fix #988
Revert "Another attempt to fix #988"

This reverts commit 21a72a8b5fc09bdc2b5c8df5c6387c532dc52dc2.
Cherry-pick -flatten: from 3.0
Merge pull request #1006 from ReactiveCocoa/copy-3.0-flatten

Cherry-pick RAC 3.0's -flatten: into master