benedikt/mongoid-tree — comment on commit f16725ea85c0e8c427138f183219ff02abec40f1
File: lib/mongoid/tree/traversal.rb line 80
By nickhoffman:

Sorry, I was explaining it poorly.

Yeah, line 99 is the problem. If a block is given, nothing will be added to `res`, and an empty array will be returned.